CVE-2026-120251 — Vulnerability intelligence
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Published:
- CVSS
- 6.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
imagecodecs 2026.3.6 through 2026.10.10 contains an infinite loop vulnerability in ccitt_fax4_decode_size() that allows attackers to hang the calling process by supplying a crafted CCITT Group 4 stream. Attackers can provide an 8-byte G4 stream lacking EOFB to ccittfax4_decode() or the numcodecs Ccittfax4 codec, consuming full CPU until the process is killed.