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CVE-2026-46595

⛔ critical
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Summary

Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped.

CVSS Score
10.0
Critical
EPSS Score
0.4
Exploit Probability
Published Date
2026-05-22
First Seen: 2026-05-23
📊 Relative Risk Intelligence

This CVE is Extremely High Risk - more severe than 100.0% of all 336,041 vulnerabilities in our database.

#1
Top 5% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 22, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-07-17
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
CWE IDs (Weakness Types)

📦 Affected Products 1

🔗 References 28

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-39827 🔶 medium 6.5 0.0 An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory gr... 2026-05-22
CVE-2026-39828 🔶 medium 6.3 0.3 When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were... 2026-05-22
CVE-2026-39829 ⚠️ high 7.5 0.4 The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessive... 2026-05-22
CVE-2026-39830 ⛔ critical 9.1 0.5 A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection... 2026-05-22
CVE-2026-39831 ⛔ critical 9.1 0.0 The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did... 2026-05-22
CVE-2026-39832 ⛔ critical 9.1 0.5 When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serializ... 2026-05-22
These CVEs affect the same products