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Full vulnerability report · 2026
CVE-2026-15176High confidence

NGINX ngx_http_core_module vulnerability

F5 · NGINX Plus

Official source article: F5 K000162416 ↗. Check the applicable product and release in the original source.

9.2CriticalCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.84% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs F5 NGINX Plus and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcenginxVendor fix publishedDebian records a fixed source-package version for this release.1.26.3-3+deb13u10Debian Security Tracker ↗Source updated 30 Oct 2026
Debian bookwormbookworm · sourcenginxAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 30 Oct 2026
Debian forkyforky · sourcenginxVendor fix publishedDebian records a fixed source-package version for this release.1.30.4-8Debian Security Tracker ↗Source updated 30 Oct 2026
Debian sidsid · sourcenginxVendor fix publishedDebian records a fixed source-package version for this release.1.30.4-8Debian Security Tracker ↗Source updated 30 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivenginxVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.1.24.0-2ubuntu7.19Canonical Ubuntu Security ↗Source updated 30 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-15176 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitynginx: nginx: heap-based buffer overflow in ngx_http_core_module via alias with rewrite referencing $request_filename
64 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • nginx as a component of Red Hat Enterprise Linux 10
  • nginx-all-modules as a component of Red Hat Enterprise Linux 10
  • nginx-core as a component of Red Hat Enterprise Linux 10
  • nginx-filesystem as a component of Red Hat Enterprise Linux 10
  • nginx-mod-devel as a component of Red Hat Enterprise Linux 10
  • nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 10
  • nginx-mod-http-perl as a component of Red Hat Enterprise Linux 10
  • nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 10
  • nginx-mod-mail as a component of Red Hat Enterprise Linux 10
  • nginx-mod-stream as a component of Red Hat Enterprise Linux 10
  • nginx.src as a component of Red Hat Enterprise Linux 10
  • nginx as a component of Red Hat Enterprise Linux 8
Summary
A flaw was found in nginx. A remote, unauthenticated attacker can trigger a heap-based buffer overflow by sending crafted HTTP requests to a server configured with specific alias and rewrite directives that reference the request filename variable. Successful exploitation may allow an attacker to achieve arbitrary code execution or cause a Denial of Service (DoS) by crashing worker processes.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-101112

No EUVD known-exploited evidence

A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
9.2 · CVSS 4.0
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

What

A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Why

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

What

A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Why

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Heap-based Buffer Overflow → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-122 ↗

CWE-122: Heap-based Buffer Overflow. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VAHighVulnerable-system availability: A successful attack can cause a major loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-122
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-101112Official EUVD mapping

A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3948NGINX: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in NGINX NGINX Plus und NGINX ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und offenzulegen oder einen Denial-of-Service-Zustand auszulösen.

Official advisory ↗
Canadian Centre for Cyber Security · English · AV26-1049F5 security advisory (AV26-1049)

As of October 14, 2026, F5 is affected by vulnerabilities in the following products:

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1341Avis du CERT-FR

De multiples vulnérabilités ont été découvertes dans les produits F5. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1317Avis du CERT-FR

De multiples vulnérabilités ont été découvertes dans les produits F5. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Official advisory ↗
NBSZ-NKI · Hungarian · cve-2026-15176CVE-2026-15176

A halom túlcsordulás egy típusú puffer túlcsordulás, ahol a felülírható puffer a memória dinamikusan részében van kiosztva, ami általában azt jelenti, hogy a puffert egy olyan függvénnyel osztották ki, mint pl. a malloc().

Official advisory ↗
CSIRT Italia · Italian · f5-risolte-vulnerabilita-nei-prodotti-nginx-1F5: risolte vulnerabilità nei prodotti NGINX

F5 ha rilasciato aggiornamenti di sicurezza che sanano alcune vulnerabilità, di cui 3 con gravità "critica" e 6 con gravità "alta", in prodotti NGINX, noto software per la gestione del traffico e degli applicativi web.

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-7000F5 제품 보안 업데이트 권고

NGINX Plus, NGINX Open Source에서 발생하는 Heap-based Buffer Overflow 취약점(CVE-2026-15176) [1][6]

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 Oct 2026 · Last source change 15 Oct 2026, 10:31 UTC · CWE-122 · Heap-based Buffer Overflow

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-10-15
European sourceENISA EUVD · EUVD-2026-101112
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    nginx as a component of Red Hat Enterprise Linux 10; nginx-all-modules as a component of Red Hat Enterprise Linux 10; nginx-core as a component of Red Hat Enterprise Linux 10; nginx-filesystem as a component of Red Hat Enterprise Linux 10; nginx-mod-devel as a component of Red Hat Enterprise Linux 10; nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 10; nginx-mod-http-perl as a component of Red Hat Enterprise Linux 10; nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 10; nginx-mod-mail as a component of Red Hat Enterprise Linux 10; nginx-mod-stream as a component of Red Hat Enterprise Linux 10; nginx.src as a component of Red Hat Enterprise Linux 10; nginx as a component of Red Hat Enterprise Linux 8; nginx-all-modules as a component of Red Hat Enterprise Linux 8; nginx-filesystem as a component of Red Hat Enterprise Linux 8; nginx-mod-devel as a component of Red Hat Enterprise Linux 8; nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 8; nginx-mod-http-perl as a component of Red Hat Enterprise Linux 8; nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 8; nginx-mod-mail as a component of Red Hat Enterprise Linux 8; nginx-mod-stream as a component of Red Hat Enterprise Linux 8; nginx.src as a component of Red Hat Enterprise Linux 8; nginx as a component of Red Hat Enterprise Linux 9; nginx-all-modules as a component of Red Hat Enterprise Linux 9; nginx-core as a component of Red Hat Enterprise Linux 9; nginx-filesystem as a component of Red Hat Enterprise Linux 9; nginx-mod-devel as a component of Red Hat Enterprise Linux 9; nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 9; nginx-mod-http-perl as a component of Red Hat Enterprise Linux 9; nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 9; nginx-mod-mail as a component of Red Hat Enterprise Linux 9; and 2 more · Fixed: nginx-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@src as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-mail-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-mail-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; and 7 more
    After
    nginx as a component of Red Hat Enterprise Linux 10; nginx-all-modules as a component of Red Hat Enterprise Linux 10; nginx-core as a component of Red Hat Enterprise Linux 10; nginx-filesystem as a component of Red Hat Enterprise Linux 10; nginx-mod-devel as a component of Red Hat Enterprise Linux 10; nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 10; nginx-mod-http-perl as a component of Red Hat Enterprise Linux 10; nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 10; nginx-mod-mail as a component of Red Hat Enterprise Linux 10; nginx-mod-stream as a component of Red Hat Enterprise Linux 10; nginx.src as a component of Red Hat Enterprise Linux 10; nginx as a component of Red Hat Enterprise Linux 8; nginx-all-modules as a component of Red Hat Enterprise Linux 8; nginx-all-modules (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-filesystem as a component of Red Hat Enterprise Linux 8; nginx-filesystem (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-devel as a component of Red Hat Enterprise Linux 8; nginx-mod-devel (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-http-image-filter as a component of Red Hat Enterprise Linux 8; nginx-mod-http-image-filter (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-http-perl as a component of Red Hat Enterprise Linux 8; nginx-mod-http-perl (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-http-xslt-filter as a component of Red Hat Enterprise Linux 8; nginx-mod-http-xslt-filter (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-mail as a component of Red Hat Enterprise Linux 8; nginx-mod-mail (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx-mod-stream as a component of Red Hat Enterprise Linux 8; nginx-mod-stream (nginx:1.24) as a component of Red Hat Enterprise Linux 8; nginx.src as a component of Red Hat Enterprise Linux 8; nginx.src (nginx:1.24) as a component of Red Hat Enterprise Linux 8; and 34 more · Fixed: nginx-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@src as a component of Red Hat Hardened Images; nginx-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nginx-all-modules-0:1.30.6-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-core-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nginx-filesystem-0:1.30.6-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-devel-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-geoip-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-image-filter-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-perl-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; nginx-mod-http-xslt-filter-0:1.30.6-1.hum1@x86_64 as a component of Red Hat Hardened Images; nginx-mod-mail-0:1.30.6-1.hum1@aarch64 as a component of Red Hat Hardened Images; nginx-mod-mail-0:1.30.6-1.hum1@s390x as a component of Red Hat Hardened Images; and 7 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    NGINX Plus: 37.1.0 < 37.1.0.1, 37.0.0 < 37.0.5.1, R36 < *, R35 < *, R34 < *, R33 < *; NGINX Open Source: 1.31.0 < 1.31.7, 0.1.29 < 1.30.6 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    NGINX Plus: 37.1.0 < 37.1.0.1, 37.0.0 < 37.0.5.1, R36 < *, R35 < *, R34 < *, R33 < *; NGINX Open Source: 1.31.0 < 1.31.7, 0.1.29 < 1.30.6 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
    Red Hat Product Security ↗
  3. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  4. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Canadian Centre for Cyber Security ↗
  5. ENISA EUVD mappingEUVD-2026-101112 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-101112"}
    ENISA EUVD ↗
  6. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
Fixed release recorded from official guidance
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-101112↗Red Hat Product Security security advisory↗Canadian Centre for Cyber Security remediation guidance↗CVE authority or vendor reference · F5 K000162416↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-15176 · cve.blacktree.nl