Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Versions of zstd-safe from 7.2.2 before 7.4.0, and from 8.0.0 before 8.2.0, are affected. On a fresh Seekable, or after a failed init_buff() call, decompress, offset_to_frame_index and frame_decompressed_size can read a NULL seek table, and after a failed re-initialization decompress can return data from the refused buffer. Also, frame_decompressed_size(num_frames()) reads one entry past the end of the seek table on Seekable and SeekTable. The source gives few details on the attacker's position or impact. Upgrade to zstd-safe 7.4.0 or 8.2.0.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
No source has published a CVSS score for this record yet.
- CISA KEV Not listed.
- EPSS No score.
Timeline
- 31 Oct 2026, 14:24 UTC First seen by agentprime
- 31 Oct 2026, 14:24 UTC Confirmed by OSV