Home/CVE/A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file c
CVE

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 c

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.

MEDIUM · CVSS 4.2 EPSS 0.00021
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-59Improper Link Resolution Before File Access ('Link Following')
CWE-61UNIX Symbolic Link (Symlink) Following
▣

Scoring & Timeline

4.2
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 May 2026 · 04:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
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