DEBIAN-CVE-2026-54548
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-54548
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54548.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-54548
- Upstream
- Published
- 2026-08-26T15:16:49Z
- Modified
- 2026-09-10T08:47:21Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
kas is a setup tool for bitbake based projects. Prior to 5.4, internal SSH key setup triggered by SSH_PRIVATE_KEY or SSH_PRIVATE_KEY_FILE creates ~/.ssh/config when no user-specific SSH configuration exists and adds a global Host * rule containing StrictHostKeyChecking no. In kas/libcmds.py, ssh_no_host_key_check() runs without checking ctx.managed_env, so the setting persists after kas exits and affects future SSH sessions by the same local user, extending beyond the intended short-lived continuous integration environment. A later SSH connection can therefore accept an attacker-controlled host key without verification, increasing the risk of a man-in-the-middle attack that compromises session confidentiality or integrity. This issue is fixed in version 5.4.
- References
Affected packages
Debian:12 / kas
Package
- Name
- kas
- Purl
- pkg:deb/debian/kas?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / kas
Package
- Name
- kas
- Purl
- pkg:deb/debian/kas?arch=source&distro=trixie
Debian:14 / kas
Package
- Name
- kas
- Purl
- pkg:deb/debian/kas?arch=source&distro=forky