CVE-2022-31142 (GCVE-0-2022-31142)
Vulnerability from cvelistv5 – Published: 2022-07-14 18:55 – Updated: 2025-04-23 18:02
VLAI
EPSS
VEX
Title
Potential Timing Attack Vector in @fastify/bearer-auth
Summary
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. A malicious attacker could estimate the length of one valid bearer token. According to the corresponding RFC 6750, the bearer token has only base64 valid characters, reducing the range of characters for a brute force attack. Version 7.0.2 and 8.0.1 of @fastify/bearer-auth contain a patch. There are currently no known workarounds. The package fastify-bearer-auth, which covers versions 6.0.3 and prior, is also vulnerable starting at version 5.0.1. Users of fastify-bearer-auth should upgrade to a patched version of @fastify/bearer-auth.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:53 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-bearer-auth/se… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-bearer-auth/co… | x_refsource_MISC |
| https://github.com/fastify/fastify-bearer-auth/co… | x_refsource_MISC |
| https://github.com/fastify/fastify-bearer-auth/co… | x_refsource_MISC |
| https://hackerone.com/reports/1633287 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-bearer-auth |
Affected:
>= 5.0.1, < 7.0.2
Affected: = 8.0.0 |
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