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CWE

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CVE-2026-8784

Published: May 18, 2026

Modified: May 18, 2026

PUBLISHED

CVSS v3.1

4.2

MEDIUM

Description

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.

Vendor	Product	Versions
npitre	cramfs-tools	affected `2.0` affected `2.1` affected `2.2`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-364408 | npitre cramfs-tools cramfsck.c change_file_status symlink

vdb-entry

technical-description

VDB-364408 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #811897 | GNU cramfs-tools below v2.2 Symlink Following

third-party-advisory

https://github.com/npitre/cramfs-tools/issues/13

exploit

issue-tracking

https://github.com/npitre/cramfs-tools/issues/13#issuecomment-4306102583

issue-tracking

https://github.com/npitre/cramfs-tools/commit/b4a3a695c9873f824907bd15659f2a6ac7667b4f

patch

https://github.com/npitre/cramfs-tools/

product

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