CVE-2025-68698
Published: 13 January 2026
Summary
CVE-2025-68698 is a high-severity Use of a Broken or Risky Cryptographic Algorithm (CWE-327) vulnerability in Samrocketman Jervis. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Unsecured Credentials (T1552); ranked at the 0.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Contacts with security groups provide timely information on broken or risky cryptographic algorithms, reducing the likelihood of their selection and use.
Ongoing education and sharing of recommended practices helps organizations identify and migrate away from broken or risky cryptographic algorithms.
Cross-organization threat feeds commonly include advances in cryptanalysis and active exploits against weak or broken algorithms, allowing organizations to deprecate them proactively.
Capital planning and funding allow selection and ongoing support of strong cryptographic algorithms rather than weak or broken ones.
Risk updates surface newly-broken or risky cryptographic algorithms as threat intelligence and computing advances evolve, enabling timely replacement.
Scanners flag use of broken or weak cryptographic algorithms via known-vulnerability databases.
Enforces approved cryptographic algorithms for each use case, blocking use of broken or risky algorithms.
Flaw remediation replaces broken or risky cryptographic algorithms once safer implementations are released by vendors.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerable PKCS#1 v1.5 RSA padding enables padding oracle decryption of sensitive/credential data.
NVD Description
Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, Jervis uses PKCS1Encoding which is vulnerable to Bleichenbacher padding oracle attacks. Modern systems should use OAEP (Optimal Asymmetric Encryption Padding). This vulnerability is…
more
fixed in 2.2.
Deeper analysisAI
CVE-2025-68698 affects Jervis, a library used for Job DSL plugin scripts and shared Jenkins pipeline libraries. In versions prior to 2.2, Jervis employs PKCS1Encoding, which is susceptible to Bleichenbacher padding oracle attacks due to its reliance on outdated RSA encryption padding. Modern cryptographic practices recommend OAEP (Optimal Asymmetric Encryption Padding) instead. The vulnerability is classified under CWE-327 (Broken or Risky Cryptographic Algorithm) with a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating high confidentiality impact.
Remote attackers require no privileges, authentication, or user interaction to exploit this over the network with low complexity. Successful exploitation enables a Bleichenbacher padding oracle attack, allowing decryption of sensitive data encrypted with the vulnerable scheme, while integrity and availability remain unaffected.
The vulnerability is addressed in Jervis version 2.2, which replaces PKCS1Encoding with a secure alternative. Relevant details are available in the GitHub security advisory (GHSA-mqw7-c5gg-xq97) and the fixing commit (c3981ff71de7b0f767dfe7b37a2372cb2a51974a). Security practitioners using Jervis in Jenkins environments should upgrade to 2.2 or later to mitigate the risk.
Details
- CWE(s)