CVE catalog

CVE-2026-68516

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Aug 24, 2026, 10:08:49 PM UTC
Updated: Aug 24, 2026, 10:17:19 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.45% · Oct 25, 2026

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. From version 3.4.0 through 3.4.13, a crafted HTJ2K-compressed EXR can crash OpenEXR during normal decode. An HTJ2K-compressed EXR whose JPEG 2000 SIZ fields place the first tile outside the visible image can reach invalid tile and codeblock geometry in the vendored OpenJPH AVX2 decoder, causing a stack out-of-bounds write and denial of service. OpenEXR's HTJ2K path validates the decoded codestream dimensions against the EXR chunk size, but it does not reject SIZ image-offset/tile-grid geometry where the first tile does not intersect the image. This issue is fixed in version 3.4.14.

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	openexr	sid	`3.4.16+ds-1`	fixed
Debian	openexr	forky	`3.4.16+ds-1`	fixed
Debian	openexr	trixie	`3.1.13-2`	vulnerable
Debian	openexr	bookworm	`3.1.5-5`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openexr	source	sid	`3.4.14-0.1`	not yet assigned	Not reported	Not reported
Debian	openexr	source	forky	`3.4.14-0.1`	not yet assigned	Not reported	Not reported
Debian	openexr	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	openexr	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libopenexr-3-1-30]Affected
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
[libopenexr-dev]Affected
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
[libopenexr-doc]Affected
Source package: [openexr]
Details (2)
- 3.1.5-5 · all · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- 3.1.5-5 · all · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
[openexr]Affected
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Affected
  nvd · openexr · debian · bookworm; nvd · openexr · debian · 12

[Debian 13 (Trixie)]

[libopenexr-3-1-30]Affected
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Affected
  nvd · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Affected
  nvd · openexr · debian · 13
[libopenexr-dev]Affected
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Affected
  nvd · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Affected
  nvd · openexr · debian · 13
[libopenexr-doc]Affected
Source package: [openexr]
Details (2)
- 3.1.13-2 · all · trixie
  Affected
  nvd · openexr · debian · 13
- 3.1.13-2 · all · trixie
  Affected
  nvd · openexr · debian · 13
[openexr]Affected
Details (2)
- 3.1.13-2 · amd64 · trixie
  Affected
  nvd · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Affected
  nvd · openexr · debian · 13

Observed: Oct 23, 2026, 9:37:02 PM UTC

References

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