CVE-2023-41104
Last modified
CVE-2023-41104 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.
Description
libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Varnish-Software | Varnish Enterprise | >= 6.0.0, < 6.0.11 |
| Varnish-Software | Varnish Enterprise | 6.0.11 |
| Varnish-Software | Vmod Digest | < 1.0.3 |
References
- https://docs.varnish-software.com/security/VSV00012/Mitigation, Vendor Advisory
- https://www.varnish-cache.org/security/VSV00012.htmlPatch, Vendor Advisory
- https://docs.varnish-software.com/security/VSV00012/Mitigation, Vendor Advisory
- https://www.varnish-cache.org/security/VSV00012.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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