CVE catalog

CVE-2026-32814

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Published: May 19, 2026, 7:49:23 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.31% · Oct 27, 2026

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, when decoding a HEIF grid image with strict_decoding=false (the default), a corrupted tile silently fails to decode and the library returns heif_error_Ok with no indication of failure, leading to an uninitialized heap memory information leak. The canvas is allocated via create_clone_image_at_new_size() → plane.alloc() → new (std::nothrow) uint8_t[allocation_size] which does not zero the memory; only the alpha plane is explicitly initialized via fill_plane(), so the Y, Cb, and Cr planes contain whatever was previously at that heap address. The failed tile's region of the canvas is never written. It retains uninitialized heap data that is delivered to the caller as decoded pixel values (4,096 bytes per Y/Cb/Cr plane = 12,288+ bytes total). Any application using libheif to decode grid-based HEIF/AVIF files with default settings is vulnerable: a crafted .heic or .avif file causes 4,096+ bytes of heap memory to appear as pixel values in the decoded image, and the calling application receives heif_error_Ok, so it has no indication the output contains heap garbage. In server-side image processing, an uploaded crafted HEIF decoded and re-encoded (e.g., as PNG/JPEG for thumbnails, CDN, social media) can leak cross-user data such as auth tokens, database results, and other users' image data. This issue has been fixed in version 1.22.0.

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	libheif	sid	`1.23.6-2`	fixed
Debian	libheif	forky	`1.23.6-2`	fixed
Debian	libheif	trixie	`1.19.8-1+deb13u1`	not affected
Debian	libheif	trixie-security	`1.23.6-2~deb13u1`	not affected
Debian	libheif	bookworm	`1.15.1-1+deb12u1`	vulnerable
Debian	libheif	bookworm-security	`1.15.1-1+deb12u1`	vulnerable
Cpe	libheif	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	heif-gdk-pixbuf	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	heif-thumbnailer	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-dev	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-examples	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-aomdec	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-aomenc	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-dav1d	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-ffmpegdec	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-j2kdec	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-j2kenc	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-jpegdec	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-jpegenc	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-libde265	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-rav1e	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-svtenc	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif-plugin-x265	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif1	Not reported	`1.17.6-1ubuntu4.4`	fixed
Cpe	libheif	Not reported	Not reported	vulnerable
Ubuntu	libheif	pro	`1.11.0-1`	vulnerable
Ubuntu	libheif	pro	`1.12.0-2build1`	vulnerable
Ubuntu	libheif	pro	`1.12.0-2ubuntu0.1~esm1`	vulnerable
Ubuntu	libheif	pro	`1.12.0-2ubuntu0.1~esm2`	vulnerable
Ubuntu	libheif	pro	`1.12.0-2ubuntu0.1~esm3`	fixed
Ubuntu	libheif	24.04	`1.16.2-2ubuntu1`	vulnerable
Ubuntu	libheif	24.04	`1.17.1-1ubuntu2`	vulnerable
Ubuntu	libheif	24.04	`1.17.1-1ubuntu3`	vulnerable
Ubuntu	libheif	24.04	`1.17.4-1ubuntu1`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu1`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu2`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu3`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu4`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu4.1`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu4.2`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu4.3`	vulnerable
Ubuntu	libheif	24.04	`1.17.6-1ubuntu4.4`	fixed
Ubuntu	libheif	25.10	`1.19.7-1`	vulnerable
Ubuntu	libheif	25.10	`1.19.8-1`	vulnerable
Ubuntu	libheif	25.10	`1.20.2-1`	vulnerable
Ubuntu	libheif	25.10	`1.20.2-1ubuntu0.1`	vulnerable
Ubuntu	libheif	25.10	`1.20.2-1ubuntu0.3`	vulnerable
Ubuntu	libheif	25.10	`1.20.2-1ubuntu0.4`	fixed
Ubuntu	libheif	26.04	`1.20.2-1`	vulnerable
Ubuntu	libheif	26.04	`1.20.2-2`	vulnerable
Ubuntu	libheif	26.04	`1.20.2-2build1`	vulnerable
Ubuntu	libheif	26.04	`1.20.2-2build2`	vulnerable
Ubuntu	libheif	26.04	`1.20.2-2ubuntu1`	vulnerable
Ubuntu	libheif	26.04	`1.21.2-1`	vulnerable
Ubuntu	libheif	26.04	`1.21.2-3`	vulnerable
Ubuntu	libheif	26.04	`1.21.2-3ubuntu0.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libheif	source	sid	`1.23.1-1`	not yet assigned	Not reported	[1137524]
Debian	libheif	source	forky	`1.23.1-1`	not yet assigned	Not reported	[1137524]
Debian	libheif	source	trixie	`Not affected`	unimportant	Not reported	[1137524]
Debian	libheif	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1137524]
Cpe	libheif	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	heif-gdk-pixbuf	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	heif-thumbnailer	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-dev	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-examples	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-aomdec	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-aomenc	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-dav1d	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-ffmpegdec	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-j2kdec	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-j2kenc	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-jpegdec	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-jpegenc	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-libde265	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-rav1e	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-svtenc	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif-plugin-x265	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Cpe	libheif1	cpe	Not reported	`1.17.6-1ubuntu4.4`	Not reported	Not reported	Not reported
Ubuntu	libheif	deb	pro	`1.12.0-2ubuntu0.1~esm3`	Not reported	UBUNTU-CVE-2026-32814	Not reported
Ubuntu	libheif	deb	24.04	`1.17.6-1ubuntu4.4`	Not reported	UBUNTU-CVE-2026-32814	Not reported
Ubuntu	libheif	deb	25.10	`1.20.2-1ubuntu0.4`	Not reported	UBUNTU-CVE-2026-32814	Not reported
Ubuntu	libheif	deb	26.04	`1.21.2-3ubuntu0.1`	Not reported	UBUNTU-CVE-2026-32814	Not reported

[Debian bug #1137524]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[heif-gdk-pixbuf]Affected
Source package: [libheif]
Details (6)
- 1.15.1-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[heif-thumbnailer]Affected
Source package: [libheif]
Details (6)
- 1.15.1-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif1]Affected
Source package: [libheif]
Details (6)
- 1.15.1-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-dev]Affected
Source package: [libheif]
Details (6)
- 1.15.1-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-examples]Affected
Source package: [libheif]
Details (6)
- 1.15.1-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.15.1-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-aomdec]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-aomenc]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-dav1d]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-ffmpegdec]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-j2kdec]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-j2kenc]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-jpegdec]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-jpegenc]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-libde265]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-rav1e]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugins-all]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-svtenc]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
[libheif-plugin-x265]Affected
Source package: [libheif]
Details (2)
- 1.19.7-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12
- 1.19.7-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · libheif · debian · bookworm; nvd · libheif · debian · 12

Observed: Oct 27, 2026, 7:33:27 AM 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] · [Ubuntu Security Notices (USN)]