What’s Vulnerable › Vulnerabilities

CVE-2019-1010263

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-07-17 · updated 2026-06-17
• Weakness: CWE-347

Description

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.

Affected products

• Perl Crypt::JWT: before 0.023 — fixed in 0.023

How to fix

Upgrade to a fixed version: Perl Crypt::JWT 0.023. Check the vendor advisory for mitigations.

References

• https://github.com/DCIT/perl-Crypt-JWT/commit/b98a59b42ded9f9e51b2560410106207c2152d6c
• https://www.openwall.com/lists/oss-security/2018/09/07/1
• https://github.com/DCIT/perl-Crypt-JWT/commit/b98a59b42ded9f9e51b2560410106207c2152d6c
• https://www.openwall.com/lists/oss-security/2018/09/07/1

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