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Echo: libheif: security update to 1.19.8-1+e5

medium Tenable Self-Hosted Container Security Plugin ID 457075

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-32814)

Solution

Update the libheif library and its related packages to version 1.19.8-1+e5 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-32814

Plugin Details

Severity: Medium

ID: 457075

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-32814

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/21/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-32814