Improper signature verification in Perl Crypt::JWT
Priority MEDIUM 45CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-347.
Summary
Perl Crypt::JWT prior to 0.023 is affected by: Incorrect Access Control. The impact is: allow attackers to bypass authentication by providing a token by crafting with hmac(). The component is: JWT.pm, line 614. The attack vector is: network connectivity. The fixed version is: after commit b98a59b42ded9f9e51b2560410106207c2152d6c.
Why it matters now
EPSS 0.01338 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Perl Crypt::JWT | Perl Crypt::JWT | prior to 0.023 [fixed: after commit b98a59b42ded9f9e51b2560410106207c2152d6c] | — | No fix listed | CNA |
- Perl Crypt::JWT VendorPerl Crypt::JWT Affected prior to 0.023 [fixed: after commit b98a59b42ded9f9e51b2560410106207c2152d6c] Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:perl_crypt\:\:jwt_project:perl_crypt\:\:jwt:*:*:*:*:*:*:*:* | jwt_project perl_crypt\ | Vulnerable | Perl Crypt |
- cpe:2.3:a:perl_crypt\:\:jwt_project:perl_crypt\:\:jwt:*:*:*:*:*:*:*:* Versions jwt_project perl_crypt\ Vulnerable ·Perl Crypt
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1010263
- 2026-10-03 Alias added: GHSA-54vx-xvq8-jh85
References
Sources
- CVE-2019-1010263 · CVE Program
- CVE-2019-1010263 · NVD
- FIRST EPSS
- GHSA-54vx-xvq8-jh85 · GitHub Advisory Database · CC BY 4.0
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