TI-2025-36900 Aliases CVE-2025-59339

The Bastion ttyrec files are not signed after encryption by the osh-encrypt-rsync script

LOW 19CWE-325Published 2025-09-17 · Updated 2025-09-17

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

The Bastion provides authentication, authorization, traceability and auditability for SSH accesses. Session-recording ttyrec files, may be handled by the provided osh-encrypt-rsync script that is a helper to rotate, encrypt, sign, copy, and optionally move them to a remote storage periodically, if configured to. When running, the script properly rotates and encrypts the files using the provided GPG key(s), but silently fails to sign them, even if asked to.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.001 0th percentileScored 2026-11-07

Fix Fixed the-bastion (ovh): 3.22.00

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
ovh	the-bastion	before 3.22.00	3.22.00	Patch available	CNA

the-bastion Vendorovh Affected before 3.22.00 Fixed in 3.22.00 Patch available CNA

Remediation

Fix · CNA the-bastion (ovh) Fixed in 3.22.00

Timeline

2026-10-02 Threatist record created from CVE-2025-59339

References

Other 2

TI-2023-24161 Group-based JIT MFA bypass on scp and sftp in The Bastion CVSS 3.1MEDIUM 4.8

Sources

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