{"id":"CVE-2026-88387","title":"LibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfileType)","summary":"LibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfileType). A specially crafted RAW, TIFF, or DNG file can supply an attacker-controlled NewSubfileTyp…","severity":"medium","published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:25:27.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88387","references":[{"url":"https://github.com/LibRaw/LibRaw/commit/b41cbbd61951783e0440590dae55411a16185bdf","label":"cve@mitre.org"},{"url":"https://github.com/LibRaw/LibRaw/issues/844","label":"cve@mitre.org"},{"url":"https://github.com/LibRaw/LibRaw/pull/853","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88387.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-88387"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540837"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-88387"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88387"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-24T20:51:40.275Z","vendor":"Red Hat","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-681"],"slug":"CVE-2026-88387","body":"## Overview\n\nLibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfileType). A specially crafted RAW, TIFF, or DNG file can supply an attacker-controlled NewSubfileType value outside the range of a signed int. The parser converts this value and narrows it to int without performing range validation. This out-of-range conversion triggers undefined behavior, resulting in process termination and denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88387.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210647,"id":"CVE-2026-88387","ts":1790322132582,"field":"cvss","old":null,"new":"5.5"},{"seq":210646,"id":"CVE-2026-88387","ts":1790322132582,"field":"severity","old":"none","new":"medium"}]}