CVE-2022-25898Improper Verification of Cryptographic Signature
- 7.7HighCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 33% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when JWS or JWT signature with non Base64URL encoding special characters or number escaped characters may be validated as valid by mistake. Workaround: Validate JWS or JWT signature if it has Base64URL and dot safe string before executing JWS.verify() or JWS.verifyJWT() method.
Timeline
ID reserved
By snyk
- 4 months later
· 4 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| snykCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H/E:P |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 33% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Affected products
jsrsasign
- affected unspecified – < 10.5.25
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmjsrsasignGHSA-3fvg-4v2m-98jf (opens in a new tab)
References
References6
- https://snyk.io/vuln/SNYK-JS-JSRSASIGN-2869122 (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2935896 (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-2935897 (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2935898 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kjur/jsrsasign/commit/4536a6e9e8bcf1a644ab7c07ed96e453347dae41 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kjur/jsrsasign/releases/tag/10.5.25 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-5902 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3fvg-4v2m-98jf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-25898)Record last updated .