{"id":"CVE-2025-26623","aliases":["GHSA-38h4-fx85-qcx7","PYSEC-2026-1353"],"title":"Exiv2 allows Use After Free","summary":"Exiv2 allows Use After Free","severity":"medium","vendor":"exiv2","product":"exiv2","ecosystem":"pip","affected":["exiv2 >= 0.28.0, < 0.28.5"],"patched":["exiv2 0.28.5"],"published":"2025-02-21","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-38h4-fx85-qcx7","references":[{"url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-38h4-fx85-qcx7"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-26623"},{"url":"https://github.com/Exiv2/exiv2/issues/3168"},{"url":"https://github.com/Exiv2/exiv2/pull/3174"},{"url":"https://github.com/jim-easterbrook/python-exiv2/commit/4cc875e392f9e0bc705fe03d929b9a382b78dae4"},{"url":"https://github.com/Exiv2/exiv2"}],"tags":["osv","pip"],"epss":0.00916,"epssPercentile":0.58682,"ingestedAt":"2026-07-08T18:25:44.875Z","slug":"CVE-2025-26623","body":"## Overview\n\n### Impact\nA heap buffer overflow was found in Exiv2 versions v0.28.0 to v0.28.4. Versions prior to v0.28.0, such as v0.27.7, are **not** affected. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.\n\nNote that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `fixiso`.\n\n### Patches\nThe bug is fixed in version v0.28.5.\n\n### References\nIssue: https://github.com/Exiv2/exiv2/issues/3168\nFix: https://github.com/Exiv2/exiv2/pull/3174\n\n### For more information\nPlease see our [security policy](https://github.com/Exiv2/exiv2/security/policy) for information about Exiv2 security.\n\n## Affected packages\n\n- `exiv2 >= 0.28.0, < 0.28.5`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `exiv2 0.28.5`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}