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Full vulnerability report · 2026
CVE-2026-8177High confidence

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences

SHLOMIF · XML::LibXML

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, 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 0.88% 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 SHLOMIF XML::LibXML 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 30 daysRemediation target: Within 180 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

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
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 · sourcelibxml-libxml-perlVendor fix publishedDebian records a fixed source-package version for this release.2.0207+dfsg+really+2.0134-5+deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelibxml-libxml-perlVendor fix publishedDebian records a fixed source-package version for this release.2.0207+dfsg+really+2.0134-1+deb12u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelibxml-libxml-perlVendor fix publishedDebian records a fixed source-package version for this release.2.0207+dfsg+really+2.0134-8Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelibxml-libxml-perlVendor fix publishedDebian records a fixed source-package version for this release.2.0207+dfsg+really+2.0134-8Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelibxml-libxml-perlUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗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-2026-8177 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityperl-XML-LibXML: XML::LibXML: Denial of Service via truncated UTF-8 in XML node names
2 known affected

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

  • perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 6
  • perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in XML::LibXML for Perl. A remote attacker could exploit this vulnerability when processing specially crafted XML node names containing incomplete UTF-8 character sequences. This can lead to an out-of-bounds read in heap memory, potentially causing the application to crash and resulting in a denial of service.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
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-2026-29000

No EUVD known-exploited evidence

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

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; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

What

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

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 → Out-of-bounds Read → disrupt the affected service
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-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

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.
NetworkUnauthenticatedDenial of serviceCWE-125
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-29000Official EUVD mapping

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3043IBM QRadar SIEM: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um beliebigen Programmcode auszuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-2362Perl: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Perl ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1094Multiples vulnérabilités dans les produits IBM

/CVERecord?id=CVE-2026-6733 Référence CVE CVE-2026-6734 https://www.cve.org/CVERecord?id=CVE-2026-6734 Référence CVE CVE-2026-6790 https://www.cve.org/CVERecord?id=CVE-2026-6790 Référence CVE CVE-2026-6918 https://www.cve.org/CVERecord?id=CVE-2026-6918 Référence CVE CVE-2026-69247 https://www.cve.org/CVERecord?id=CVE-2026-69247 Référence CVE CVE-2026-69248 https://www.cve.org/CVERecord?id=CVE-2026-69248 Référence CVE CVE-2026-69249 https://www.cve.org/CVERecord?id=CVE-2026-69249 Référence CVE CVE-2026-7246 https://www.cve.org/CVERecord?id=CVE-2026-7246 Référence CVE CVE-2026-75838 https://www.cve.org/CVERecord?id=CVE-2026-75838 Référence CVE CVE-2026-8177 https://www.cve.org/CVERecord?id=CVE-2026-8177 Référence CVE CVE-2026-8400 https://www.cve.org/CVERecord?id=CVE-2026-8400 Référence CVE CVE-2026-8646 https://www.cve.org/CVERecord?id=CVE-2026-8646 Référence CVE CVE-2026-8723 https://www.cve.org/CVERecord?id=CVE-2026-8723 Référence CVE CVE-2026-9071 https://www.cve.org/CVERecord?id=CVE-2026-9071 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9320 https://www.cve.org/CVERecord?id=CVE-2026-9320 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9358 https://www.cve.org/CVERecord?id=CVE-2026-9358 Ré

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
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
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 10 May 2026 · Last source change 18 Sept 2026, 12:04 UTC · CWE-125 · Out-of-bounds Read

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 2026-08-14
European sourceENISA EUVD · EUVD-2026-29000
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD not scheduled

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: access.redhat.com/RHSA-2026:68632; removed vendor advisory: access.redhat.com/RHSA-2026:68685; 2 further removals.
    Before
    remediation: github.com/146 · vendor advisory: access.redhat.com/RHSA-2026:68632 · vendor advisory: access.redhat.com/RHSA-2026:68685 · 2 more references
    After
    remediation: github.com/146
    CNA ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: access.redhat.com/RHSA-2026:68632; added vendor advisory: access.redhat.com/RHSA-2026:68685; 2 further additions.
    Before
    remediation: github.com/146
    After
    remediation: github.com/146 · vendor advisory: access.redhat.com/RHSA-2026:68632 · vendor advisory: access.redhat.com/RHSA-2026:68685 · 2 more references
    github.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 6; perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 7 · Fixed: perl-XML-LibXML-1:2.0210-4.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); and 24 more
    After
    perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 6; perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 7 · Fixed: perl-XML-LibXML-1:2.0210-4.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); and 29 more
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 6; perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 7 · Fixed: perl-XML-LibXML-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0206-5.el9_8.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); perl-XML-LibXML-1:2.0206-5.el9_8.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); perl-XML-LibXML-1:2.0206-5.el9_8.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); perl-XML-LibXML-1:2.0206-5.el9_8.1.src as a component of Red Hat Enterprise Linux AppStream (v. 9); and 9 more
    After
    perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 6; perl-XML-LibXML.src as a component of Red Hat Enterprise Linux 7 · Fixed: perl-XML-LibXML-1:2.0210-4.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); perl-XML-LibXML-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debuginfo-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-debugsource-1:2.0210-4.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); perl-XML-LibXML-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debuginfo-1:2.0132-3.el8_10.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8); perl-XML-LibXML-debugsource-1:2.0132-3.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8); and 24 more
    Red Hat Product Security ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: added remediation: github.com/146.
    Before
    no authoritative guidance recorded
    After
    remediation: github.com/146
    CNA ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    ≤ 2.0210 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    XML::LibXML: ≤ 2.0210 · Fixed: Upgrade to a future XML::LibXML release, or apply the upstream patch.
    CNA ↗
  7. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-29000↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor 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-2026-8177 · cve.blacktree.nl