CVE-2026-62314

Received Received - Intake

Path Traversal in Anubis Web AI Firewall Utility

Publication date: 2026-07-15

Last updated on: 2026-07-15

Assigner: GitHub, Inc.

Description

Anubis is a Web AI Firewall Utility that challenges users' connections in order to protect upstream resources from scraper bots. From 1.22.0 until 1.26.0-pre1, lib/policy/checker.go PathChecker.Check() trusted the client-controlled X-Original-URI header before matching r.URL.Path, allowing an HTTP client to match default data/common/keep-internet-working.yaml ALLOW rules such as ^/\.well-known/.*$ and bypass the Anubis challenge. This issue is fixed in version 1.26.0-pre1.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-15

Last Modified

2026-07-15

Generated

2026-07-16

AI Q&A

2026-07-16

EPSS Evaluated

N/A

NVD

CVE-2026-62314

Affected Vendors & Products

Vendor	Product	Version / Range
anubis	anubis	From 1.22.0 (inc) to 1.26.0-pre1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Mitigation Strategies

Upgrade Anubis to version 1.26.0-pre1 or later. If upgrading is not possible, restrict access to paths matching ^/\.well-known/.*$ or disable X-Original-URI header processing until patched.

Executive Summary

This vulnerability in Anubis Web AI Firewall Utility allows an attacker to bypass security challenges by manipulating the X-Original-URI header. The PathChecker.Check() function incorrectly trusted this client-controlled header before validating the actual request path, enabling bypass of default allow rules.

Impact Analysis

Attackers could bypass Anubis security challenges, potentially gaining unauthorized access to protected resources. This may allow scraping of sensitive data or abuse of upstream systems protected by the firewall.

Compliance Impact

This vulnerability could lead to unauthorized data access, potentially violating GDPR or HIPAA requirements for protecting personal or health information. Organizations using affected Anubis versions may face compliance violations.

Detection Guidance

Check Anubis firewall logs for requests with X-Original-URI headers that bypass expected paths. Inspect traffic matching ^/\.well-known/.*$ patterns while bypassing challenges. Verify if versions between 1.22.0 and 1.26.0-pre1 are installed.

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