TI-2022-13168 Aliases CVE-2022-31124 GHSA-hm37-9xh2-q499

Possible leak of key's raw field if declared length is incorrect in openssh_key_parser

HIGH 67CWE-209Published 2022-07-06 · Updated 2025-04-22

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-209.

Summary

openssh_key_parser is an open source Python package providing utilities to parse and pack OpenSSH private and public key files. In versions prior to 0.0.6 if a field of a key is shorter than it is declared to be, the parser raises an error with a message containing the raw field value. An attacker able to modify the declared length of a key's sensitive field can thus expose the raw value of that field. Users are advised to upgrade to version 0.0.6, which no longer includes the raw field value in the error message. There are no known workarounds for this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01334 71st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed openssh_key_parser (scottcwang): 0.0.6openssh-key-parser (PyPI): 0.0.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
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
scottcwang	openssh_key_parser	before 0.0.6	0.0.6	Patch available	CNA
—	openssh-key-parser (PyPI)	before 0.0.6	0.0.6	Patch available	GHSA-hm37-9xh2-q499

openssh_key_parser Vendorscottcwang Affected before 0.0.6 Fixed in 0.0.6 Patch available CNA
openssh-key-parser (PyPI) Vendor— Affected before 0.0.6 Fixed in 0.0.6 Patch available GHSA-hm37-9xh2-q499

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openssh_key_parser_project:openssh_key_parser::::::python::*	before 0.0.6	Vulnerable	Openssh Key Parser Project

cpe:2.3:a:openssh_key_parser_project:openssh_key_parser:*:*:*:*:*:python:*:* Versions before 0.0.6 Vulnerable ·Openssh Key Parser Project

Remediation

Fix · CNA openssh_key_parser (scottcwang) Fixed in 0.0.6
Fix · GHSA-hm37-9xh2-q499 openssh-key-parser (PyPI) Fixed in 0.0.6 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-31124
2026-10-03 Alias added: GHSA-hm37-9xh2-q499

References

Exploit 1

https://github.com/scottcwang/openssh_key_parser/pull/5

Patch 3

Advisory 2

Other 2

Sources

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