CVE-2025-3757 json
Authentication Bypass in OpenPubKey
published last yr. modified 4mo 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
Is CVE-2025-3757 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).
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 Intel 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.