TI-2026-40840 Aliases CVE-2026-56651 GHSA-q9x7-4mx4-prwq

Arbitrary File Overwrite via Symlink Following in dool project

LOW 10CWE-59Published 2026-08-27 · Updated 2026-08-27

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Dool in versions up to 1.3.8 is vulnerable to symlink following when the "--devel" flag is used, as the application opens a log file without the "O_NOFOLLOW" flag. A local attacker can exploit this by creating a symlink at the expected log file path pointing to a sensitive file, causing dool to truncate and overwrite the target file with log data, which is especially impactful if dool is run with elevated privileges. The issue was addressed by pull request #116

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00187 8th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
scottchiefbaker	dool	up to 1.3.8	—	No fix listed	CNA

dool Vendorscottchiefbaker Affected up to 1.3.8 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-56651
2026-10-03 Alias added: GHSA-q9x7-4mx4-prwq

References

Patch 1

https://github.com/scottchiefbaker/dool/pull/116

Advisory 1

https://cert.pl/en/posts/2026/08/CVE-2026-56651

TI-2026-40841 Formula Injection in dool project CVSS 4.0MEDIUM 4.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences