# CVE-2024-56826: Openjpeg: heap buffer overflow in bin/common/color.c

Status: published. Published: 2025-01-09. Updated: 2026-11-05.

A flaw was found in the OpenJPEG project. A heap buffer overflow condition may be triggered when certain options are specified while using the opj_decompress utility.  This can lead to an application crash or other undefined behavior.

## Remediation

No remediation reported in collected sources

## Affected products and versions

-  /  (openjpeg): ≥ 2.5.3; < * (unaffected, semver). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (openjpeg2): ≥ 0:2.4.0-8.el9; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (openjpeg2): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (openjpeg): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (openjpeg): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (openjpeg2): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gimp:flatpak/openjpeg2): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (openjpeg2): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 5.6 (medium); CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.31% as of 2026-11-04; percentile 24.39%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-122

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2025:7309 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2024-56826 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2335172 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/uclouvain/openjpeg/commit/e492644fbded4c820ca55b5e50e598d346e850e8 (CNA: redhat)

- https://github.com/uclouvain/openjpeg/issues/1563 (CNA: redhat)

- https://lists.debian.org/debian-lts-announce/2025/04/msg00002.html (ADP: CVE)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-56826; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-56826; retrieved 2026-11-05; source updated Not reported

Revision: 4b96350a58a0eb5861247be81a4ba55696ccf9759bd7e5add99ae746da927222

Canonical: https://y2.dev/cve/CVE-2024-56826

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