CVE-2026-64655 GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

GitHub CLI gh is GitHub’s official command line tool. Prior to 2.97.0, gh attestation verify builds the certificate Subject Alternative Name matcher from the --signer-repo and --signer-workflow flag values without escaping regex metacharacters, so a user-supplied repository or workflow name is...

EUVD-2026-47644

Traefik: Authentication Bypass via Path Traversal in ReplacePathRegex Middleware...

Traefik: Kubernetes Ingress NGINX RewriteTarget Path Traversal Allows Route-Level Authentication Bypass

Summary There is a high severity vulnerability in Traefik's Kubernetes Ingress NGINX provider. When an Ingress uses the nginx.ingress.kubernetes.io/rewrite-target annotation with a regular expression that captures attacker-controlled text without requiring a path separator for example path /api...

SUSE CVE-2026-71287

Cacti's sanitizesqlcolumn lib/functions.php sanitizes user-supplied ORDER BY column names using the regex . Because this allowlist retains letters, digits, underscore, parentheses, and dot intended to support expressions like COUNTid and table.column, a payload such as passes through completely...

CVE-2026-68749

The vulnerability CVE-2026-68749 affects the html_sanitize_ex Ruby gem (versions before 1.5.3; affected range includes 0.3.1–1.5.2). It stems from an inefficient greedy regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 that backtracks on long CSS declarations, causing quadratic CPU consumption and pot...

CVE-2026-68749 Quadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of service

Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene htmlsanitizeex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the property name...

CVE-2026-68749 Quadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of service

Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene htmlsanitizeex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the property name...

CVE-2026-68749 Quadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of service

Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene htmlsanitizeex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the property name...

EEF-CVE-2026-68749 Quadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of service

Summary Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene html\sanitize\ex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the...

EUVD-2026-54084

Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene htmlsanitizeex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the property name...

CVE-2026-71190

A flaw was found in OpenStack Swift's proxy server. The Accept header parser uses a regular expression that is vulnerable to catastrophic backtracking. An unauthenticated attacker can send a crafted Accept header with a small number of backslash characters in an unterminated quoted string, causin...

EulerOS 2.0 SP13 : perl (EulerOS-SA-2026-2985)

According to the versions of the perl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds...

EulerOS 2.0 SP13 : perl (EulerOS-SA-2026-3035)

According to the versions of the perl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds...

CVE-2026-49331

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication skip-auth-regex, the proxy forwards client-supplied identity headers X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token to the upstream application without stripping them. An unauthenticated attacke...

DEBIAN-CVE-2026-71287

Cacti's sanitizesqlcolumn lib/functions.php sanitizes user-supplied ORDER BY column names using the regex . Because this allowlist retains letters, digits, underscore, parentheses, and dot intended to support expressions like COUNTid and table.column, a payload such as passes through completely...

CVE-2026-71209 audiobookshelf - %2F Encoding Discrepancy Bypasses Cover/Image Auth Exemption Regex, Enabling Unauthenticated Path Traversal

audiobookshelf's authentication-exemption check server/routers/Auth.js matches unauthenticated-allowed GET routes against req.path via a regex requiring a literal /items/:id/cover or /authors/:id/image shape, where req.path retains %2F sequences URL-encoded. CacheManager.handleCoverCache then joi...

CVE-2026-71209

Audiobookshelf CVE-2026-71209 describes an authentication-exemption bypass in server/routers/Auth.js. The regex checks unauthenticated GET routes against req.path, but because req.path can contain URL-encoded %2F sequences, an encoded directory traversal like ..%2f..%2f..%2ftmp%2fpwned escapes th...

CVE-2026-71190

In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to catastrophic backtracking ReDoS. The "qdtext" pattern ?:^"|\. allows an unauthenticated remote attacker to send a crafted Accept header that causes exponential CPU consumption in...

CVE-2026-70493

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, the built-in knowledge search path in backend/openwebui/tools/knowledgefs.py and backend/openwebui/tools/builtin.py let a chat participant choose a pattern used to grep knowledge files...

GHSA-2F54-P244-32Q6 Open WebUI: Any authenticated user can stall a worker via a knowledge-search pattern that backtracks catastrophically

Summary The built-in knowledge search tools let a chat participant choose the pattern used to grep knowledge files. Patterns containing regex metacharacters were compiled with Python's backtracking re engine and run against every line of every reachable file, with no time limit anywhere on that...