CVE-2026-24513
Last modified
CVE-2026-24513 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. A security issue was discovered in ingress-nginx where the protection afforded by the `auth-url` Ingress annotation may not be effective in the presence of a specific misconfiguration. If the ingress-nginx controller is configured with a default custom-errors configuration that includes HTTP errors 401 or 403, and if the configured default custom-errors backend is defective and fails to respect the X-Code HTTP header, then an Ingress with the `auth-url` annotation may be accessed even when authentication fails. Note that the built-in custom-errors backend works correctly. To trigger this issue requires an administrator to specifically configure ingress-nginx with a broken external component.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
A security issue was discovered in ingress-nginx where the protection afforded by the `auth-url` Ingress annotation may not be effective in the presence of a specific misconfiguration. If the ingress-nginx controller is configured with a default custom-errors configuration that includes HTTP errors 401 or 403, and if the configured default custom-errors backend is defective and fails to respect the X-Code HTTP header, then an Ingress with the `auth-url` annotation may be accessed even when authentication fails. Note that the built-in custom-errors backend works correctly. To trigger this issue requires an administrator to specifically configure ingress-nginx with a broken external component.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-24513?
How severe is CVE-2026-24513?
How do I fix CVE-2026-24513?
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.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-24508Dell Alienware Command Center (AWCC), versions prior to 6.12…5.5
- CVE-2026-24509Dell Alienware Command Center (AWCC), versions prior to 6.12…5.5
- CVE-2026-2451Emails sent by pretix can utilize placeholders that will be …6.5
- CVE-2026-24510Dell Alienware Command Center (AWCC), versions prior to 6.12…7.8
- CVE-2026-24511Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.1.6 and…4.4
- CVE-2026-24512A security issue was discovered in ingress-nginx where the `…8.8
- CVE-2026-24514A security issue was discovered in ingress-nginx where the v…6.5
- CVE-2026-24515In libexpat before 2.7.4, XML_ExternalEntityParserCreate doe…2.5
- CVE-2026-24516A command injection vulnerability exists in DigitalOcean Dro…8.8
- CVE-2026-24517An OS command injection vulnerability exists in XWEB Pro …7.2
- CVE-2026-2452Emails sent by pretix can utilize placeholders that will be …6.5
- CVE-2026-24520Missing Authorization vulnerability in bPlugins Tiktok Feed …4.3
Are you affected by CVE-2026-24513?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST