CVE catalog

CVE-2026-19967

assimp: CVE-2026-19967

Severity: Medium · CVSS 6.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Published: Aug 17, 2026, 12:30:11 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.45% · Oct 25, 2026

A security flaw has been discovered in Open Asset Import Library Assimp 17c12da. Impacted is the function Assimp::Compression::decompressBlock of the file code/Common/Compression.cpp of the component File Parser. Performing a manipulation results in heap-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

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	assimp	sid	`6.0.5+ds-1`	vulnerable
Debian	assimp	forky	`6.0.5+ds-1`	vulnerable
Debian	assimp	trixie	`5.4.3+ds-2`	vulnerable
Debian	assimp	bookworm	`5.2.5~ds0-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	assimp	source	sid	`(unfixed)`	not yet assigned	Not reported	[1145890]
Debian	assimp	source	forky	`(unfixed)`	not yet assigned	Not reported	[1145890]
Debian	assimp	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1145890]
Debian	assimp	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1145890]

[Debian bug #1145890]

Notes

[trixie] assimp: Minor issue, revisit when fixed upstream [bookworm] assimp: Minor issue, revisit when fixed upstream

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[assimp-testmodels]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[assimp-utils]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp5]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp-dev]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp-doc]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[python3-pyassimp]Affected
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Affected
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12

[Debian 13 (Trixie)]

[assimp-testmodels]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13
[assimp-utils]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Affected
  dsa · assimp · debian · 13
[libassimp5]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Affected
  dsa · assimp · debian · 13
[libassimp-dev]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Affected
  dsa · assimp · debian · 13
[libassimp-doc]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13
[python3-pyassimp]Affected
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Affected
  dsa · assimp · debian · 13

Observed: Oct 23, 2026, 9:39:11 PM UTC

References

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