GHSA-mqw7-c5gg-xq97

Suggest an improvement
Source
https://github.com/advisories/GHSA-mqw7-c5gg-xq97
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-mqw7-c5gg-xq97/GHSA-mqw7-c5gg-xq97.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-mqw7-c5gg-xq97
Aliases
Published
2026-01-13T14:28:57Z
Modified
2026-02-03T03:11:54.190383Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Jervis Has a RSA PKCS#1 Padding Vulnerability
Details

Vulnerability

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L463-L465

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L495-L497

Uses PKCS1Encoding which is vulnerable to Bleichenbacher padding oracle attacks. Modern systems should use OAEP (Optimal Asymmetric Encryption Padding).

Impact

Severity is considered low for internal uses of this library but if there's any consumer using these methods directly then this is considered critical.

An attacker with access to a decryption oracle (e.g., timing differences or error messages) could potentially decrypt ciphertext without knowing the private key.

Jervis uses RSA to encrypt AES keys in local-only storage inaccessible from the web. The data stored is GitHub App authentication tokens which will expire within one hour or less.

Patches

Jervis patch will migrate from PKCS1Encoding to OAEPEncoding.

Upgrade to Jervis 2.2.

Workarounds

None

References

Database specific 
{
    "nvd_published_at": "2026-01-13T20:16:07Z",
    "github_reviewed_at": "2026-01-13T14:28:57Z",
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-327"
    ],
    "github_reviewed": true
}
References

Affected packages

Maven / net.gleske:jervis

Package

Name
net.gleske:jervis
View open source insights on deps.dev
Purl
pkg:maven/net.gleske/jervis

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2

Affected versions

0.*
0.1
0.2
0.3
0.4
0.5
0.5.1
0.5.2
0.6
0.7
0.8
0.9
0.10
0.11
0.12
0.13
1.*
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
2.*
2.0
2.0.1
2.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-mqw7-c5gg-xq97/GHSA-mqw7-c5gg-xq97.json"