CVE catalog

CVE-2026-34086

Vulnerability in Wikimedia Foundation AbuseFilter. This issue affects AbuseFilter: from * before 1.43.7, 1.44.4, 1.45.2.

Severity: Low · CVSS 2.1CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:X/V:X/RE:X/U:X
Published: Mar 31, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.24% · Oct 25, 2026

Vulnerability in Wikimedia Foundation AbuseFilter. This issue affects AbuseFilter: from * before 1.43.7, 1.44.4, 1.45.2.

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	mediawiki	sid	`1:1.43.11+dfsg-3`	fixed
Debian	mediawiki	forky	`1:1.43.11+dfsg-1`	fixed
Debian	mediawiki	trixie	`1:1.43.9+dfsg-1~deb13u1`	fixed
Debian	mediawiki	trixie-security	`1:1.43.9+dfsg-1~deb13u1`	fixed
Debian	mediawiki	bookworm	`1:1.39.17-1+deb12u2`	vulnerable
Debian	mediawiki	bookworm-security	`1:1.39.17-1+deb12u2`	vulnerable
Cpe	mediawiki	Not reported	Not reported	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mediawiki	source	sid	`1:1.43.8+dfsg-1`	not yet assigned	Not reported	Not reported
Debian	mediawiki	source	forky	`1:1.43.8+dfsg-1`	not yet assigned	Not reported	Not reported
Debian	mediawiki	source	trixie	`1:1.43.8+dfsg-1~deb13u1`	not yet assigned	Not reported	Not reported
Debian	mediawiki	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

Notes

[bookworm] mediawiki: Minor issue, too intrusive to backport

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[mediawiki]Affected
Details (4)
- 1:1.39.17-1+deb12u2 · all · bookworm
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
[mediawiki-classes]Affected
Source package: [mediawiki]
Details (4)
- 1:1.39.17-1+deb12u2 · all · bookworm
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Affected
  nvd · mediawiki · debian · bookworm; nvd · mediawiki · debian · 12

[Debian 13 (Trixie)]

[mediawiki]Fixed
Details (4)
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
[mediawiki-classes]Fixed
Source package: [mediawiki]
Details (4)
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.43.8+dfsg-1~deb13u1
  nvd · mediawiki · debian · 13

Observed: Oct 27, 2026, 10:28:16 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]