CVE catalog

CVE-2026-111127

catdoc: CVE-2026-111127

Severity: Medium · CVSS 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/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:X/AU:X/R:X/V:X/RE:X/U:X
Published: Oct 15, 2026, 6:57:23 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.13% · Oct 27, 2026

catdoc through 0.95 contains an out-of-bounds read vulnerability in copy_unicode_string() in src/xlsparse.c that allows attackers to read past buffers via an unchecked string character count. Attackers can supply a crafted .xls file declaring 0xFFFF two-byte characters in LABEL, STRING, or SST records to disclose adjacent memory through xls2csv output or crash the process.

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	catdoc	sid	`1:0.95-6`	unknown
Debian	catdoc	forky	`1:0.95-6`	unknown
Debian	catdoc	trixie	`1:0.95-6`	unknown
Debian	catdoc	bookworm	`1:0.95-6~deb12u1`	unknown
Debian	catdoc	bookworm-security	`1:0.95-6~deb12u1`	unknown

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	catdoc	source	sid	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	catdoc	source	forky	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	catdoc	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	catdoc	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[catdoc]Affected
Details (4)
- 1:0.95-6~deb12u1 · amd64 · bookworm
  Affected
  dsa · catdoc · debian · bookworm; dsa · catdoc · debian · 12
- 1:0.95-6~deb12u1 · arm64 · bookworm
  Affected
  dsa · catdoc · debian · bookworm; dsa · catdoc · debian · 12
- 1:0.95-6~deb12u1 · amd64 · bookworm-security
  Affected
  dsa · catdoc · debian · bookworm; dsa · catdoc · debian · 12
- 1:0.95-6~deb12u1 · arm64 · bookworm-security
  Affected
  dsa · catdoc · debian · bookworm; dsa · catdoc · debian · 12

[Debian 13 (Trixie)]

[catdoc]Affected
Details (2)
- 1:0.95-6 · amd64 · trixie
  Affected
  dsa · catdoc · debian · 13
- 1:0.95-6 · arm64 · trixie
  Affected
  dsa · catdoc · debian · 13

Observed: Oct 24, 2026, 10:16:26 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]