CVE-2026-13608
Last modified
CVE-2026-13608 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A flaw in the libcurl SASL negotiation for LDAP authentication allows an incomplete handshake sequence to be misinterpreted as a successful cryptographic verification. An attacker executing a Man-in-the-Middle (MITM) attack can inject a premature or shortcut response that bypasses complete peer validation.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.
Description
A flaw in the libcurl SASL negotiation for LDAP authentication allows an incomplete handshake sequence to be misinterpreted as a successful cryptographic verification. An attacker executing a Man-in-the-Middle (MITM) attack can inject a premature or shortcut response that bypasses complete peer validation.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 7.82.0, < 8.22.0 |
References
- https://curl.se/docs/CVE-2026-13608.htmlPatch, Vendor Advisory
- https://curl.se/docs/CVE-2026-13608.jsonVendor Advisory
- https://hackerone.com/reports/3822248Exploit, Third Party Advisory
- https://hackerone.com/reports/3822248Exploit, Third Party 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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