Red Hat Security Advisory: perl-XML-LibXML security update
A security vulnerability (CVE-2026-8177) affects the perl-XML-LibXML module, which provides a Perl interface to the GNOME libxml2 library for XML parsing and manipulation. The vulnerability allows a denial of service (DoS) attack via truncated UTF-8 sequences in XML node names. Red Hat has issued an important security update addressing this issue for Red Hat Enterprise Linux 9 across multiple architectures. The update fixes the vulnerability by correcting the handling of malformed UTF-8 in XML node names.
AI Analysis
Technical Summary
The perl-XML-LibXML module, which interfaces Perl with the GNOME libxml2 XML parser, is vulnerable to a denial of service via malformed XML input containing truncated UTF-8 sequences in node names (CVE-2026-8177). This vulnerability is tracked by Red Hat under advisory RHSA-2026:39553 and affects Red Hat Enterprise Linux 9 and its extended update support versions across multiple architectures. The issue is classified under CWE-125 (Out-of-bounds Read). Red Hat has released updated packages (perl-XML-LibXML-2.0206-5.el9_8.1) that fix this vulnerability. No CVSS score is provided, but the vendor rates the impact as Important.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition by crashing or hanging applications that parse XML using the affected perl-XML-LibXML module when processing XML node names containing truncated UTF-8 sequences. This disrupts normal application functionality but does not indicate code execution or data disclosure. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update fixing this vulnerability. Users of affected Red Hat Enterprise Linux 9 versions should apply the perl-XML-LibXML update (version 2.0206-5.el9_8.1 or later) as provided in advisory RHSA-2026:39553. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation is required beyond applying the official patch.
Red Hat Security Advisory: perl-XML-LibXML security update
Description
A security vulnerability (CVE-2026-8177) affects the perl-XML-LibXML module, which provides a Perl interface to the GNOME libxml2 library for XML parsing and manipulation. The vulnerability allows a denial of service (DoS) attack via truncated UTF-8 sequences in XML node names. Red Hat has issued an important security update addressing this issue for Red Hat Enterprise Linux 9 across multiple architectures. The update fixes the vulnerability by correcting the handling of malformed UTF-8 in XML node names.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The perl-XML-LibXML module, which interfaces Perl with the GNOME libxml2 XML parser, is vulnerable to a denial of service via malformed XML input containing truncated UTF-8 sequences in node names (CVE-2026-8177). This vulnerability is tracked by Red Hat under advisory RHSA-2026:39553 and affects Red Hat Enterprise Linux 9 and its extended update support versions across multiple architectures. The issue is classified under CWE-125 (Out-of-bounds Read). Red Hat has released updated packages (perl-XML-LibXML-2.0206-5.el9_8.1) that fix this vulnerability. No CVSS score is provided, but the vendor rates the impact as Important.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition by crashing or hanging applications that parse XML using the affected perl-XML-LibXML module when processing XML node names containing truncated UTF-8 sequences. This disrupts normal application functionality but does not indicate code execution or data disclosure. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update fixing this vulnerability. Users of affected Red Hat Enterprise Linux 9 versions should apply the perl-XML-LibXML update (version 2.0206-5.el9_8.1 or later) as provided in advisory RHSA-2026:39553. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation is required beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:39553
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a577ef368715ace43b415c4
Added to database: 07/15/2026, 12:37:07 UTC
Last enriched: 07/15/2026, 12:55:54 UTC
Last updated: 07/16/2026, 03:58:28 UTC
Views: 7
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