CVE-2026-8784

A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file cramfsck.c. Performing a manipulation results in symlink following. The attack requires a local approach. The exploit is now public and may be used. The patch is named b4a3a695c9873f824907bd15659f2a6ac7667b4f. It is recommended to apply a patch to fix this issue.

• https://github.com/npitre/cramfs-tools/
• https://github.com/npitre/cramfs-tools/commit/b4a3a695c9873f824907bd15659f2a6ac7667b4f
• https://github.com/npitre/cramfs-tools/issues/13
• https://github.com/npitre/cramfs-tools/issues/13#issuecomment-4306102583
• https://vuldb.com/submit/811897
• https://vuldb.com/vuln/364408
• https://vuldb.com/vuln/364408/cti