Description
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.
References (5)
Core 5
Core References
Third Party Advisory x_refsource_confirm
https://github.com/scottcwang/openssh_key_parser/security/advisories/GHSA-hm37-9xh2-q499
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/scottcwang/openssh_key_parser/pull/5
Patch, Third Party Advisory x_refsource_misc
https://github.com/scottcwang/openssh_key_parser/commit/26e0a471e9fdb23e635bc3014cf4cbd2323a08d3
Patch, Third Party Advisory x_refsource_misc
https://github.com/scottcwang/openssh_key_parser/commit/274447f91b4037b7050ae634879b657554523b39
Patch, Third Party Advisory x_refsource_misc
https://github.com/scottcwang/openssh_key_parser/commit/d5b53b4b7e76c5b666fc657019dbf864fb04076c
Scores
CVSS v3
7.7
EPSS
0.0103
EPSS Percentile
59.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-209
Status
published
Products (2)
openssh_key_parser_project/openssh_key_parser
< 0.0.6
pypi/openssh-key-parser
0 - 0.0.6PyPI
Published
Jul 06, 2022
Tracked Since
Feb 18, 2026