GHSA-hvc7-763r-4f3h

Suggest an improvement
Source
https://github.com/advisories/GHSA-hvc7-763r-4f3h
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-hvc7-763r-4f3h/GHSA-hvc7-763r-4f3h.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-hvc7-763r-4f3h
Aliases
Published
2026-04-01T21:11:32Z
Modified
2026-09-01T09:25:30Z
Severity
  • 6.6 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U CVSS Calculator
Summary
openssl-encrypt has no owner verification on key revocation — any client can revoke any key
Details

Summary

The revoke_key method in openssl_encrypt_server/modules/keyserver/service.py at lines 195-270 accepts a client_id parameter but never verifies that the requesting client is the same as key.owner_client_id.

Impact

Any authenticated client can revoke any other client's key, as long as they provide a valid revocation signature. While the signature requirement mitigates this somewhat (you need the private key to sign), the lack of ownership check is a defense-in-depth gap.

Recommended Fix

  • Add an ownership check: verify client_id == key.owner_client_id before allowing revocation
  • Return 403 Forbidden if the requesting client does not own the key

Fix

Fixed in commit 05e45f3 on branch releases/1.4.x — added documentation that ML-DSA signature verification IS the cryptographic ownership check; added info-level logging on successful verification.

Database specific 
{
    "cwe_ids":  [
        "CWE-862"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-01T21:11:32Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

PyPI / openssl-encrypt

Package

Name
openssl-encrypt
View open source insights on deps.dev
Purl
pkg:pypi/openssl-encrypt

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.4.0

Affected versions

0.*
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.3.0
0.3.1
0.3.2
0.3.3
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.5.0
0.5.1
0.5.3
0.6.0rc1
0.7.0rc2
0.7.1
0.7.2
0.8.0
0.8.1
0.8.2
0.9.2
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.1.0
1.2.0
1.2.1
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.4.0b3
1.4.0b4
1.4.0b5
1.4.0b6
1.4.0b7
1.4.0b8

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-hvc7-763r-4f3h/GHSA-hvc7-763r-4f3h.json"