{"id":"CVE-2026-59156","title":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation","summary":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream containing consecutive 2880-byte head…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-674"],"vendor":"openimageio","product":"openimageio","affected":["openimageio < 3.0.20.0","openimageio >= 3.1.0.0, <= 3.1.15.0","openimageio = 3.2.0.0","openimageio = 3.2.0.2"],"patched":["openimageio 3.0.20.0"],"published":"2026-09-18","updated":"2026-09-29","sourceUpdated":"2026-09-29T18:57:22.510","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59156","references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/b0de7d40d06eb4abc7ef14c1321a1a2a976d8c1c","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5248","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xvwr-x6ch-v2fq","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xvwr-x6ch-v2fq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00363,"epssPercentile":0.29922,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-24T20:55:34.960673Z"},"ingestedAt":"2026-09-18T16:45:41.385Z","slug":"CVE-2026-59156","body":"## Overview\n\nOpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream containing consecutive 2880-byte header blocks without the mandatory end keyword makes fitsinput::read_fits_header() call itself without a depth bound. repeated recursive parsing exhausts the application stack, resulting in denial of service. The affected implementation is identified by src/fits.imageio/fitsinput.cpp, FitsInput::read_fits_header(), END keyword, and 2880-byte FITS header blocks, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.\n\n## Affected\n\n- `openimageio < 3.0.20.0`\n- `openimageio >= 3.1.0.0, <= 3.1.15.0`\n- `openimageio = 3.2.0.0`\n- `openimageio = 3.2.0.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `openimageio 3.0.20.0`","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":210402,"id":"CVE-2026-59156","ts":1790286831623,"field":"exploit_available","old":"false","new":"true"}]}