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Full vulnerability report · 2026
CVE-2026-80231High confidence

native CA store conn reuse

curl · curl

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 8 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.90% 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.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs curl curl 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.

Distribution package intelligence

Release-specific package status

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

5 package states
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
Alpine v3.23v3.23 · maincurlVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.8.22.0-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcecurlNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcecurlNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcecurlNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcecurlNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 5 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-2026-80231 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitycurl: curl: Incorrect HTTPS connection reuse with Native CA Store
9 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • curl-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images
  • curl-0:8.22.0-0.1.hum1@src as a component of Red Hat Hardened Images
  • curl-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
  • libcurl-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images
  • libcurl-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
  • libcurl-devel-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images
  • libcurl-devel-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
  • libcurl-minimal-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images
  • libcurl-minimal-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
Summary
A flaw was found in libcurl. This vulnerability allows libcurl to incorrectly reuse an existing HTTPS connection for a given hostname, even when a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) is specified for the new connection. This could potentially lead to a client trusting a malicious server if the initial connection used a less strict CA store than intended for subsequent connections.
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-2026-72169

No EUVD known-exploited evidence

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.

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
7.5 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.

What

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.

Why

The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.

Why

The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Exposure of Data Element to Wrong Session → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-488 ↗

CWE-488: Exposure of Data Element to Wrong Session. The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-488Public exploit reference
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-72169Official EUVD mapping

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3642Meinberg LANTIME: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Meinberg LANTIME ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren, Denial-of-Service-Zustände herbeizuführen, sowie weitere, nicht näher spezifizierte Angriffe zu starten.

Official advisory ↗
BSI · German · WID-SEC-2026-3149cURL: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsmechanismen zu umgehen, Informationen offenzulegen und einen Denial-of-Service-Zustand herbeizuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260909Security Bulletin 9 Sep 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 9 Sep 2026, published on 9 September 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1108Multiples vulnérabilités dans Curl

De multiples vulnérabilités ont été découvertes dans Curl. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, une atteinte à l'intégrité des données et un contournement de la politique de sécurité.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-033363HaxxのcURLにおける誤ったセッションへのデータ要素の漏えいに関する脆弱性

libcurlの欠陥により、異なるNative CAストア設定（`CURLSSLOPT_NATIVE_CA`）を使用している場合でも、特定のホスト名に対して既存のHTTPS接続の設定を誤って再利用してしまう問題があります。

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.
Patch available
Affected
curl: 7.71.0, 7.71.1, 8.3.0, 7.83.1, 8.11.1, 8.17.0 < 8.20.1, 7.80.0, 8.13.0, 8.14.0, 8.0.1, 7.85.0, 8.14.1, 7.83.0, 8.18.0, 7.82.0, 8.2.0, 8.8.0, 8.16.0, 8.10.1, 7.75.0, 7.79.0, 8.21.0, 7.76.0, 7.88.0, 7.74.0, 7.78.0, 8.6.0, 7.73.0, 8.7.1, 7.79.1, 7.88.1, 8.15.0 < 8.16.1, 8.10.0, 7.77.0, 8.11.0, 8.12.1, 7.71.0 < 8.14.2, 8.20.0, 8.12.0, 7.76.1, 8.5.0, 8.4.0, 8.1.1, 8.9.0, 7.72.0, 8.17.0, 8.2.1, 8.19.0, 8.1.2, 8.7.0, 8.9.1, 7.84.0, 7.87.0, 8.15.0, 8.21.0 < 8.22.0, 7.86.0, 148534db57dda611cf8516e92e4d6e35fc1e5074 < 7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42, 8.1.0, 8.0.0, 7.81.0
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 6 Sept 2026 · Last source change 15 Sept 2026, 06:03 UTC · CWE-488 · Exposure of Data Element to Wrong Session

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-08
European sourceENISA EUVD · EUVD-2026-72169
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after 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
    curl: 7.71.0 < 8.14.2, 8.15.0 < 8.16.1, 8.17.0 < 8.20.1, 8.21.0 < 8.22.0, 148534db57dda611cf8516e92e4d6e35fc1e5074 < 7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42, 8.21.0, 8.20.0, 8.19.0, 8.18.0, 8.17.0, 8.16.0, 8.15.0, 8.14.1, 8.14.0, 8.13.0, 8.12.1, 8.12.0, 8.11.1, 8.11.0, 8.10.1, 8.10.0, 8.9.1, 8.9.0, 8.8.0, 8.7.1, 8.7.0, 8.6.0, 8.5.0, 8.4.0, 8.3.0, 8.2.1, 8.2.0, 8.1.2, 8.1.1, 8.1.0, 8.0.1, 8.0.0, 7.88.1, 7.88.0, 7.87.0, 7.86.0, 7.85.0, 7.84.0, 7.83.1, 7.83.0, 7.82.0, 7.81.0, 7.80.0, 7.79.1, 7.79.0, 7.78.0, 7.77.0, 7.76.1, 7.76.0, 7.75.0, 7.74.0, 7.73.0, 7.72.0, 7.71.1, 7.71.0 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    curl: 7.71.0 < 8.14.2, 8.15.0 < 8.16.1, 8.17.0 < 8.20.1, 8.21.0 < 8.22.0, 148534db57dda611cf8516e92e4d6e35fc1e5074 < 7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42, 8.21.0, 8.20.0, 8.19.0, 8.18.0, 8.17.0, 8.16.0, 8.15.0, 8.14.1, 8.14.0, 8.13.0, 8.12.1, 8.12.0, 8.11.1, 8.11.0, 8.10.1, 8.10.0, 8.9.1, 8.9.0, 8.8.0, 8.7.1, 8.7.0, 8.6.0, 8.5.0, 8.4.0, 8.3.0, 8.2.1, 8.2.0, 8.1.2, 8.1.1, 8.1.0, 8.0.1, 8.0.0, 7.88.1, 7.88.0, 7.87.0, 7.86.0, 7.85.0, 7.84.0, 7.83.1, 7.83.0, 7.82.0, 7.81.0, 7.80.0, 7.79.1, 7.79.0, 7.78.0, 7.77.0, 7.76.1, 7.76.0, 7.75.0, 7.74.0, 7.73.0, 7.72.0, 7.71.1, 7.71.0 · 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 ↗
  2. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-80231 to remediation: access.redhat.com/CVE-2026-80231.
    Before
    remediation: access.redhat.com/CVE-2026-80231
    After
    remediation: access.redhat.com/CVE-2026-80231
    Red Hat Product Security ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    curl.src as a component of Red Hat Hardened Images
    After
    Fixed: curl-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; curl-0:8.22.0-0.1.hum1@src as a component of Red Hat Hardened Images; curl-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; libcurl-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; libcurl-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; libcurl-devel-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; libcurl-devel-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; libcurl-minimal-0:8.22.0-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; libcurl-minimal-0:8.22.0-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    curl: 8.21.0 ≤ 8.21.0, 8.20.0 ≤ 8.20.0, 8.19.0 ≤ 8.19.0, 8.18.0 ≤ 8.18.0, 8.17.0 ≤ 8.17.0, 8.16.0 ≤ 8.16.0, 8.15.0 ≤ 8.15.0, 8.14.1 ≤ 8.14.1, 8.14.0 ≤ 8.14.0, 8.13.0 ≤ 8.13.0, 8.12.1 ≤ 8.12.1, 8.12.0 ≤ 8.12.0, 8.11.1 ≤ 8.11.1, 8.11.0 ≤ 8.11.0, 8.10.1 ≤ 8.10.1, 8.10.0 ≤ 8.10.0, 8.9.1 ≤ 8.9.1, 8.9.0 ≤ 8.9.0, 8.8.0 ≤ 8.8.0, 8.7.1 ≤ 8.7.1, 8.7.0 ≤ 8.7.0, 8.6.0 ≤ 8.6.0, 8.5.0 ≤ 8.5.0, 8.4.0 ≤ 8.4.0, 8.3.0 ≤ 8.3.0, 8.2.1 ≤ 8.2.1, 8.2.0 ≤ 8.2.0, 8.1.2 ≤ 8.1.2, 8.1.1 ≤ 8.1.1, 8.1.0 ≤ 8.1.0, 8.0.1 ≤ 8.0.1, 8.0.0 ≤ 8.0.0, 7.88.1 ≤ 7.88.1, 7.88.0 ≤ 7.88.0, 7.87.0 ≤ 7.87.0, 7.86.0 ≤ 7.86.0, 7.85.0 ≤ 7.85.0, 7.84.0 ≤ 7.84.0, 7.83.1 ≤ 7.83.1, 7.83.0 ≤ 7.83.0, 7.82.0 ≤ 7.82.0, 7.81.0 ≤ 7.81.0, 7.80.0 ≤ 7.80.0, 7.79.1 ≤ 7.79.1, 7.79.0 ≤ 7.79.0, 7.78.0 ≤ 7.78.0, 7.77.0 ≤ 7.77.0, 7.76.1 ≤ 7.76.1, 7.76.0 ≤ 7.76.0, 7.75.0 ≤ 7.75.0, 7.74.0 ≤ 7.74.0, 7.73.0 ≤ 7.73.0, 7.72.0 ≤ 7.72.0, 7.71.1 ≤ 7.71.1, 7.71.0 ≤ 7.71.0 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    curl: 7.71.0 < 8.14.2, 8.15.0 < 8.16.1, 8.17.0 < 8.20.1, 8.21.0 < 8.22.0, 148534db57dda611cf8516e92e4d6e35fc1e5074 < 7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42, 8.21.0, 8.20.0, 8.19.0, 8.18.0, 8.17.0, 8.16.0, 8.15.0, 8.14.1, 8.14.0, 8.13.0, 8.12.1, 8.12.0, 8.11.1, 8.11.0, 8.10.1, 8.10.0, 8.9.1, 8.9.0, 8.8.0, 8.7.1, 8.7.0, 8.6.0, 8.5.0, 8.4.0, 8.3.0, 8.2.1, 8.2.0, 8.1.2, 8.1.1, 8.1.0, 8.0.1, 8.0.0, 7.88.1, 7.88.0, 7.87.0, 7.86.0, 7.85.0, 7.84.0, 7.83.1, 7.83.0, 7.82.0, 7.81.0, 7.80.0, 7.79.1, 7.79.0, 7.78.0, 7.77.0, 7.76.1, 7.76.0, 7.75.0, 7.74.0, 7.73.0, 7.72.0, 7.71.1, 7.71.0 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  6. ENISA EUVD mappingEUVD-2026-72169 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-72169"}
    ENISA EUVD ↗
  7. Vendor guidanceAuthoritative vendor guidance changed: added mitigation: hackerone.com/3969368; added patch: curl.se/CVE-2026-80231.html; 2 further additions.
    Before
    no authoritative guidance recorded
    After
    mitigation: hackerone.com/3969368 · patch: curl.se/CVE-2026-80231.html · remediation: curl.se/CVE-2026-80231.html · 1 more references
    curl.se ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    8.21.0 ≤ 8.21.0; 8.20.0 ≤ 8.20.0; 8.19.0 ≤ 8.19.0; 8.18.0 ≤ 8.18.0; 8.17.0 ≤ 8.17.0; 8.16.0 ≤ 8.16.0; 8.15.0 ≤ 8.15.0; 8.14.1 ≤ 8.14.1 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    curl: 8.21.0 ≤ 8.21.0, 8.20.0 ≤ 8.20.0, 8.19.0 ≤ 8.19.0, 8.18.0 ≤ 8.18.0, 8.17.0 ≤ 8.17.0, 8.16.0 ≤ 8.16.0, 8.15.0 ≤ 8.15.0, 8.14.1 ≤ 8.14.1, 8.14.0 ≤ 8.14.0, 8.13.0 ≤ 8.13.0, 8.12.1 ≤ 8.12.1, 8.12.0 ≤ 8.12.0, 8.11.1 ≤ 8.11.1, 8.11.0 ≤ 8.11.0, 8.10.1 ≤ 8.10.1, 8.10.0 ≤ 8.10.0, 8.9.1 ≤ 8.9.1, 8.9.0 ≤ 8.9.0, 8.8.0 ≤ 8.8.0, 8.7.1 ≤ 8.7.1, 8.7.0 ≤ 8.7.0, 8.6.0 ≤ 8.6.0, 8.5.0 ≤ 8.5.0, 8.4.0 ≤ 8.4.0, 8.3.0 ≤ 8.3.0, 8.2.1 ≤ 8.2.1, 8.2.0 ≤ 8.2.0, 8.1.2 ≤ 8.1.2, 8.1.1 ≤ 8.1.1, 8.1.0 ≤ 8.1.0, 8.0.1 ≤ 8.0.1, 8.0.0 ≤ 8.0.0, 7.88.1 ≤ 7.88.1, 7.88.0 ≤ 7.88.0, 7.87.0 ≤ 7.87.0, 7.86.0 ≤ 7.86.0, 7.85.0 ≤ 7.85.0, 7.84.0 ≤ 7.84.0, 7.83.1 ≤ 7.83.1, 7.83.0 ≤ 7.83.0, 7.82.0 ≤ 7.82.0, 7.81.0 ≤ 7.81.0, 7.80.0 ≤ 7.80.0, 7.79.1 ≤ 7.79.1, 7.79.0 ≤ 7.79.0, 7.78.0 ≤ 7.78.0, 7.77.0 ≤ 7.77.0, 7.76.1 ≤ 7.76.1, 7.76.0 ≤ 7.76.0, 7.75.0 ≤ 7.75.0, 7.74.0 ≤ 7.74.0, 7.73.0 ≤ 7.73.0, 7.72.0 ≤ 7.72.0, 7.71.1 ≤ 7.71.1, 7.71.0 ≤ 7.71.0 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  9. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    curl.se ↗
  10. Public exploit evidencePublic exploit evidence changed from Public exploit reference to Public exploit reference.
    Before
    Public exploit reference
    After
    Public exploit reference
    hackerone.com ↗
  11. Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
    Before
    No public exploit
    After
    Public exploit reference
    CVE.org ↗
  12. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    CISA ADP ↗
  13. CVSS scoreCVSS score changed from not recorded to 7.5 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
    Before
    not recorded
    After
    7.5 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
    CISA ADP ↗
  14. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-72169↗Red Hat Product Security security advisory↗CISA Vulnrichment SSVC evidence↗CVE authority or vendor reference↗Patch or update reference↗Public exploit reference↗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-2026-80231 · cve.blacktree.nl