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3.6
CVE-2026-35386EXPLOITEDPATCHED
openbsd · openssh

CVE-2026-35386: In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This r

Description

In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.

Affected Products

VendorProductVersions
openbsdopenssh0, < 10.3

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
ibmqradar siemcert_advisory90%
open sourceopensshcert_advisory90%

References

  • https://www.openssh.org/releasenotes.html#10.3p1
  • https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
  • https://www.openwall.com/lists/oss-security/2026/04/02/3

Related News (5 articles)

Tier B
BSI Advisories21d ago
[NEU] [hoch] IBM QRadar SIEM: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
BSI Advisories70d ago
[NEU] [mittel] OpenSSH: Mehrere Schwachstellen
→ No new info (linked only)
Tier A
Microsoft MSRC70d ago
CVE-2026-35386
→ No new info (linked only)
Tier C
oss-security74d ago
Re: Announce: OpenSSH 10.3 released
→ No new info (linked only)
Tier C
VulDB75d ago
CVE-2026-35386 | OpenSSH up to 10.2 Command Line ssh_config incorrect behavior order
→ No new info (linked only)
CVSS 3.13.6 LOW
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
10.3
CWECWE-696, CWE-78
PublishedApr 2, 2026
Last enriched75d agov2
Tags
problematiccommand-injectionsshmetacharacter-bypass
Trending Score3
Source articles5
Independent4
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

HIGHPRE-CVE
OpenBSD sppp_pap_input PAP Authentication Bypass Vulnerability
Trending: 27
HIGHCVE-2026-35385
CVE-2026-35385: In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' e
Trending: 6
LOWCVE-2026-35388
CVE-2026-35388: OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.
Trending: 4
MEDIUMCVE-2026-35414EXP
CVE-2026-35414: OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list i
Trending: 3
LOWCVE-2026-35387EXP
CVE-2026-35387: OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or H
Trending: 3

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 2, 2026
Discovered by ZDM
Apr 2, 2026
Updated: severity, cvssEstimate, tags
Apr 2, 2026
Actively Exploited
Apr 3, 2026
Exploit Available
Apr 3, 2026
Patch Available
Apr 3, 2026

Version History

v2
Last enriched 75d ago
v2Tier C75d ago

Updated severity to MEDIUM, CVSS estimate to 4.0, and added tag 'problematic'.

severitycvssEstimatetags
via VulDB
v175d ago

Initial creation