CVE-2026-56376
CVE-2026-56376 is a low-severity vulnerability in Imagemagick with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Low (CVSS 3.x base score 3.7)
- CVSS v4: 6.3
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38440
- Weakness: CWE-416
- Affected product: Imagemagick
- Published:
- Last modified:
Description
ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.
Frequently asked questions
- What is CVE-2026-56376?
- ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.
- How severe is CVE-2026-56376?
- CVE-2026-56376 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-56376 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-56376?
- CVE-2026-56376 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-56376?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-56376 have an EU (EUVD) identifier?
- Yes. CVE-2026-56376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38440.
- When was CVE-2026-56376 published?
- CVE-2026-56376 was published on 2026-06-23 and last updated on 2026-06-24.
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm
- https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder
Affected products (1)
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
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