CVE catalog
CVE-2026-77643
A cross-site scripting vulnerability in queryparser/termgenerator_internal.cc in Xapian xapian-core before 2.1.0 and before 1.4.32 exists due to incomplete HTML escaping by Xapian::MSet::snippet(). N
- Severity
- Medium · CVSS 4.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.25% · Oct 25, 2026
A cross-site scripting vulnerability in queryparser/termgenerator_internal.cc in Xapian xapian-core before 2.1.0 and before 1.4.32 exists due to incomplete HTML escaping by Xapian::MSet::snippet(). NOTE: this issue exists because of a missed corner case of CVE-2018-0499.
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 | xapian-core | sid | 1.4.32-1 | fixed |
| Debian | xapian-core | forky | 1.4.32-1 | fixed |
| Debian | xapian-core | trixie | 1.4.29-3+deb13u1 | fixed |
| Debian | xapian-core | bookworm | 1.4.22-1 | vulnerable |
| Ubuntu | xapian-core | 14.04 | 1.2.15-2 | vulnerable |
| Ubuntu | xapian-core | 14.04 | 1.2.16-2 | vulnerable |
| Ubuntu | xapian-core | 14.04 | 1.2.16-2ubuntu1 | vulnerable |
| Ubuntu | xapian-core | 16.04 | 1.2.21-1.2 | vulnerable |
| Ubuntu | xapian-core | 16.04 | 1.2.22-1 | vulnerable |
| Ubuntu | xapian-core | 16.04 | 1.2.22-2 | vulnerable |
| Ubuntu | xapian-core | 18.04 | 1.4.4-2 | vulnerable |
| Ubuntu | xapian-core | 18.04 | 1.4.5-1 | vulnerable |
| Ubuntu | xapian-core | 18.04 | 1.4.5-1ubuntu0.1 | vulnerable |
| Ubuntu | xapian-core | 20.04 | 1.4.12-1 | vulnerable |
| Ubuntu | xapian-core | 20.04 | 1.4.14-2 | vulnerable |
| Ubuntu | xapian-core | 22.04 | 1.4.18-3build1 | vulnerable |
| Ubuntu | xapian-core | 22.04 | 1.4.18-4 | vulnerable |
| Ubuntu | xapian-core | 24.04 | 1.4.22-1 | vulnerable |
| Ubuntu | xapian-core | 24.04 | 1.4.22-1build1 | vulnerable |
| Ubuntu | xapian-core | 26.04 | 1.4.29-3 | vulnerable |
| Ubuntu | xapian-core | 26.04 | 1.4.29-3build1 | vulnerable |
| Ubuntu | xapian-core | 26.04 | 1.4.31-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | xapian-core | source | sid | 1.4.32-1 | not yet assigned | Not reported | [1144490] |
| Debian | xapian-core | source | forky | 1.4.32-1 | not yet assigned | Not reported | [1144490] |
| Debian | xapian-core | source | trixie | 1.4.29-3+deb13u1 | not yet assigned | Not reported | [1144490] |
| Debian | xapian-core | source | bookworm | (unfixed) | not yet assigned | Not reported | [1144490] |
Notes
[bookworm] xapian-core: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libxapian30]Affected
Source package: [xapian-core]
Details (2)
1.4.22-1· amd64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
1.4.22-1· arm64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
- [libxapian-dev]Affected
Source package: [xapian-core]
Details (2)
1.4.22-1· amd64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
1.4.22-1· arm64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
- [xapian-doc]Affected
Source package: [xapian-core]
Details (2)
1.4.22-1· all · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
1.4.22-1· all · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
- [xapian-examples]Affected
Source package: [xapian-core]
Details (2)
1.4.22-1· amd64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
1.4.22-1· arm64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
- [xapian-tools]Affected
Source package: [xapian-core]
Details (2)
1.4.22-1· amd64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
1.4.22-1· arm64 · bookwormAffected
nvd · xapian-core · debian · bookworm; nvd · xapian-core · debian · 12
[Debian 13 (Trixie)]
- [libxapian30]Affected
Source package: [xapian-core]
Details (4)
1.4.29-3· amd64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.29-3· arm64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
- [libxapian-dev]Affected
Source package: [xapian-core]
Details (4)
1.4.29-3· amd64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.29-3· arm64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
- [xapian-doc]Affected
Source package: [xapian-core]
Details (4)
1.4.29-3· all · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.29-3· all · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· all · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· all · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
- [xapian-examples]Affected
Source package: [xapian-core]
Details (4)
1.4.29-3· amd64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.29-3· arm64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
- [xapian-tools]Affected
Source package: [xapian-core]
Details (4)
1.4.29-3· amd64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.29-3· arm64 · trixieAffected · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
1.4.32-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
1.4.29-3+deb13u1nvd · xapian-core · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-77643]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-77643]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-77643]
- [https://security-tracker.debian.org/tracker/CVE-2026-77643]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-77643.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]