CVE catalog
CVE-2026-86137
In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.
- Severity
- Low · CVSS 2.9
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.19% · Oct 25, 2026
In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libxml2 | sid | 2.15.4+dfsg-1 | fixed |
| Debian | libxml2 | forky | 2.15.4+dfsg-1 | fixed |
| Debian | libxml2 | trixie | 2.12.7+dfsg+really2.9.14-2.1+deb13u3 | vulnerable |
| Debian | libxml2 | trixie-security | 2.12.7+dfsg+really2.9.14-2.1+deb13u1 | vulnerable |
| Debian | libxml2 | bookworm | 2.9.14+dfsg-1.3~deb12u6 | not affected |
| Debian | libxml2 | bookworm-security | 2.9.14+dfsg-1.3~deb12u4 | not affected |
| Cpe | libxml2 | Not reported | 2.15.4 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libxml2 | source | sid | 2.15.4+dfsg-1 | not yet assigned | Not reported | [1146744] |
| Debian | libxml2 | source | forky | 2.15.4+dfsg-1 | not yet assigned | Not reported | [1146744] |
| Debian | libxml2 | source | trixie | (unfixed) | not yet assigned | Not reported | [1146744] |
| Debian | libxml2 | source | bookworm | Not affected | unimportant | Not reported | [1146744] |
| Cpe | libxml2 | cpe | Not reported | 2.15.4 | Not reported | NVD-CVE-2026-86137 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [libxml2]Affected
Details (4)
2.12.7+dfsg+really2.9.14-2.1+deb13u3· amd64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u3· arm64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· amd64 · trixie-securityAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· arm64 · trixie-securityAffected
nvd · libxml2 · debian · 13
- [libxml2-dev]Affected
Source package: [libxml2]
Details (4)
2.12.7+dfsg+really2.9.14-2.1+deb13u3· amd64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u3· arm64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· amd64 · trixie-securityAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· arm64 · trixie-securityAffected
nvd · libxml2 · debian · 13
- [libxml2-doc]Affected
Source package: [libxml2]
Details (4)
2.12.7+dfsg+really2.9.14-2.1+deb13u3· all · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u3· all · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· all · trixie-securityAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· all · trixie-securityAffected
nvd · libxml2 · debian · 13
- [libxml2-utils]Affected
Source package: [libxml2]
Details (4)
2.12.7+dfsg+really2.9.14-2.1+deb13u3· amd64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u3· arm64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· amd64 · trixie-securityAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· arm64 · trixie-securityAffected
nvd · libxml2 · debian · 13
- [python3-libxml2]Affected
Source package: [libxml2]
Details (4)
2.12.7+dfsg+really2.9.14-2.1+deb13u3· amd64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u3· arm64 · trixieAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· amd64 · trixie-securityAffected
nvd · libxml2 · debian · 13
2.12.7+dfsg+really2.9.14-2.1+deb13u1· arm64 · trixie-securityAffected
nvd · libxml2 · debian · 13
[Debian 12 (Bookworm)]
- [libxml2]Not affected
Details (4)
2.9.14+dfsg-1.3~deb12u6· amd64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u6· arm64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· amd64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· arm64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
- [libxml2-dev]Not affected
Source package: [libxml2]
Details (4)
2.9.14+dfsg-1.3~deb12u6· amd64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u6· arm64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· amd64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· arm64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
- [libxml2-doc]Not affected
Source package: [libxml2]
Details (4)
2.9.14+dfsg-1.3~deb12u6· all · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u6· all · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· all · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· all · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
- [libxml2-utils]Not affected
Source package: [libxml2]
Details (4)
2.9.14+dfsg-1.3~deb12u6· amd64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u6· arm64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· amd64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· arm64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
- [python3-libxml2]Not affected
Source package: [libxml2]
Details (4)
2.9.14+dfsg-1.3~deb12u6· amd64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u6· arm64 · bookwormNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· amd64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
2.9.14+dfsg-1.3~deb12u4· arm64 · bookworm-securityNot affected
nvd · libxml2 · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-86137]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-86137]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-86137]
- [https://security-tracker.debian.org/tracker/CVE-2026-86137]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86137.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3642.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]