libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heif_context_read_from_memory() can leave the context with no registered sequence tracks and crash when heif_context_get_track(ctx, 0) is called. HeifContext::get_track() in libheif/context.cc executes assert(has_sequence()) before its normal error handling, so assert-enabled builds abort instead of allowing the public wrapper in libheif/api/libheif/heif_sequences.cc to return null. In release builds, removing the assertion lets the track_id zero path dereference m_tracks.begin()->second on an empty map, which is undefined behavior and typically crashes. The issue is reachable through documented public APIs after parsing attacker-controlled bytes. This issue is fixed in version 1.23.1.

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 1.23.0 and earlier, a crafted HEIF sequence
    accepted by heif_context_read_from_memory() can leave the context with no registered sequence tracks and
    crash when heif_context_get_track(ctx, 0) is called. HeifContext::get_track() in libheif/context.cc
    executes assert(has_sequence()) before its normal error handling, so assert-enabled builds abort instead
    of allowing the public wrapper in libheif/api/libheif/heif_sequences.cc to return null. In release builds,
    removing the assertion lets the track_id zero path dereference m_tracks.begin()->second on an empty map,
    which is undefined behavior and typically crashes. The issue is reachable through documented public APIs
    after parsing attacker-controlled bytes. This issue is fixed in version 1.23.1. (CVE-2026-62377)

The remote Ubuntu 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8774-1 advisory.

    Ali Firas discovered that libheif incorrectly handled certain images. An attacker could possibly use this     issue to cause a denial of service or execute arbitrary code. (CVE-2026-62291)

    Dmitrijs Trizna discovered that libheif incorrectly handled certain image sequences. An attacker could     possibly use this issue to cause a denial of service. (CVE-2026-62377)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21644-1 advisory.

    Update to version 1.23.1 (jsc#PED-16355).

    Security issues fixed:

    - CVE-2026-62289: integer underflow in Fraction constructor via double clap transform application     (bsc#1273079).
    - CVE-2026-62291: heap out-of-bounds write in the uncompressed encoder when writing images with mismatched     auxiliary       alpha dimensions (bsc#1273080).
    - CVE-2026-62292: out-of-bounds read in uncompressed unci tile range slicing (bsc#1273081).
    - CVE-2026-62377: reachable assertion in `HeifContext::get_track()` aborts on a valid-but-empty HEIF     sequence file       (bsc#1273082).
    - Heap out-of-bounds write in the uncompressed encoder for RRGGBB images with interleaved bit-depth `<= 8`       (bsc#1273083).

    Changes for libheif:

    - Version 1.23.1
      - FFmpeg decoder plugin gains AV1, VVC, JPEG, and JPEG 2000/HTJ2K decoding.
      - SVT-AV1 encoder: new `tune=iq` and `ms-ssim` tune parameters.
      - C++ API: added getters/setters for the CLLI and MDCV HDR metadata boxes.
      - Sequence decoder now scales the alpha auxiliary track to the main image size.
      - Fixed pixi box writing for multi-channel images.
      - Corrected the placement of the TAI `clock_type` field into the top 2 bits.
      - Empty/unset plugin directory is no longer scanned.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3597-1 advisory.

    Update to version 1.23.1 (jsc#PED-16355).

    Security issues fixed:

    - CVE-2026-62289: integer underflow in Fraction constructor via double clap transform application     (bsc#1273079).
    - CVE-2026-62291: heap out-of-bounds write in the uncompressed encoder when writing images with mismatched     auxiliary       alpha dimensions (bsc#1273080).
    - CVE-2026-62292: out-of-bounds read in uncompressed unci tile range slicing (bsc#1273081).
    - CVE-2026-62377: reachable assertion in `HeifContext::get_track()` aborts on a valid-but-empty HEIF     sequence file       (bsc#1273082).
    - Heap out-of-bounds write in the uncompressed encoder for RRGGBB images with interleaved bit-depth `<= 8`       (bsc#1273083).

    Changes for libheif:

    - Version 1.23.1
      - FFmpeg decoder plugin gains AV1, VVC, JPEG, and JPEG 2000/HTJ2K decoding.
      - SVT-AV1 encoder: new `tune=iq` and `ms-ssim` tune parameters.
      - C++ API: added getters/setters for the CLLI and MDCV HDR metadata boxes.
      - Sequence decoder now scales the alpha auxiliary track to the main image size.
      - Fixed pixi box writing for multi-channel images.
      - Corrected the placement of the TAI `clock_type` field into the top 2 bits.
      - Empty/unset plugin directory is no longer scanned.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
459606	Echo: libheif: security update to 1.19.8-1	Tenable Cloud Security	Echo Local Security Checks	Local	medium
459606	Echo: libheif: security update to 1.19.8-1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
346831	Ubuntu 26.04 LTS : libheif vulnerabilities (USN-8774-1)	Nessus	Ubuntu Local Security Checks	Local	medium
341176	openSUSE 16: gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc (openSUSE-SU-2026:21644-1)	Nessus	SuSE Local Security Checks	Local	high
335100	SUSE SLED15: gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc (SUSE-SU-2026:3597-1)	Nessus	SuSE Local Security Checks	Local	high

Detections

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CVE-2026-62377

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Tenable Plugins

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medium

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high