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.

CVSS 4.0

1.8CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

4.2CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

EPSS

0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)

CWEs

CWE-59, CWE-61

Published

2026-05-18

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

References

• 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

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