CVE-2025-3757 json
Authentication Bypass in OpenPubKey
published 2025-05-13 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-14478 , GHSA-537f-gxgm-3jjq , GO-2025-3679
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification.
Patch / fix
- go github.com/openpubkey/openpubkey 0.10.0
- openpubkey openpubkey 0.10.0
- openpubkey opkssh 0.10.0
- golang-github-openpubkey-openpubkey Debian 14 0.18.0-1
debian advisories DEBIAN-CVE-2025-3757
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250515T200012-1.1
opensuse advisories openSUSE-SU-2025:15135-1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 17 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L/AU:Y |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/openpubkey/openpubkey | <0.10.0 |
0.10.0 |
Affected products
- OPKSSH OPKSSH
Classification
References
-
github.com
/openpubkey/openpubkey
package, product
-
github.com
/openpubkey/openpubkey/security/advisories/GHSA-537f-gxgm-3jjq
web, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-3757
advisory
Sources
- CVE List CVE-2025-3757
- GitHub Advisory GHSA-537f-gxgm-3jjq
- NVD CVE-2025-3757
- OSV GO-2025-3679
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.