CVE-2026-126360 OpenTelemetry Python: Denial of service through quadratic-time traceparent parsing in opentelemetry-api

OpenTelemetry Python provides the Python API and SDK for OpenTelemetry. Prior to 1.45.2, TraceContextTextMapPropagator.extract in opentelemetry-api can perform quadratic-time regular-expression backtracking on a malformed traceparent value containing a trace-context prefix, a long whitespace...

CVE-2026-126360

The opentelemetry-api component in OpenTelemetry Python (prior to version 1.45.2 ) is vulnerable to a Denial of Service (DoS) via quadratic-time regular-expression backtracking. The issue occurs within TraceContextTextMapPropagator.extract() when processing a malformed traceparent value containin...

CVE-2026-126191

Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 3.0, the CSSESCAPES and IDENTIFIER regular-expression subpatterns can backtrack exponentially on runs of ambiguous digit escapes in an attribute-name or tag position of an otherwise valid selector. The failur...

CVE-2023-43646

CVE-2023-43646 Vulnerability Overview CVE-2023-43646 CVSS : 8.6 Sep 26, 2023 ReDoS in node.js package Part of the rebob project Vulnerability Description github advisories /\sfunction?:\s|\s/^?:/+/\s^\/+/ This vulnerability can be exploited when there is an imbalance in parentheses, which results...

regexploit

Regexploit Find regexes which are vulnerable to Regular Expression Denial of Service ReDoS. More info onthe Doyensec blog Many default regular expression parsers have unbounded worst-case complexity. Regex matching may be quick when presented with a matching input string. However, certain...

CVE-2024-27088

CVE-2024-27088 취약점 개요 CVE-2024-27088 Feb 26, 2024 ReDoS in node.js package rebob 프로젝트의 일환 취약점 설명 github advisories /^\sfunction\s\0-'-\uffff+\s\0--\uffff\s/ This vulnerability can be exploited when there is an imbalance in parentheses, which results in excessive backtracking and subsequently...

GitPython: GitPython: Denial of Service via regular expression backtracking in date parsing

A flaw was found in GitPython. A remote attacker can trigger a Denial of Service DoS by providing a malicious repository containing commit or tag objects with long, space-filled lines lacking a valid timestamp or timezone. When parsing these lines, the regular expression pattern triggers quadrati...

GitPython: GitPython: Denial of Service via regular expression backtracking in date parsing

A flaw was found in GitPython. A remote attacker can trigger a Denial of Service DoS by providing a malicious repository containing commit or tag objects with long, space-filled lines lacking a valid timestamp or timezone. When parsing these lines, the regular expression pattern triggers quadrati...

Important: Red Hat Security Advisory: jackson-core security update

An update for jackson-core is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

RHEL 9 : jackson-core (RHSA-2026:98493)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:98493 advisory. Core part of Jackson that defines Streaming API as well as basic shared abstractions. Security Fixes: com.fasterxml.jackson/jackson-core:...

PoC-CVE-2025-25200

CVE-2025-25200 Context Vulnerability: CVE-2025-25200 Type: Regular Expression Denial of Service ReDoS Component: Kao = 2.0.0, = 3.0.0-alpha.0, = 1.0.0, 1.7.1, 0.21.2 Description: This vulnerability presents quadratic time complexity On² or, in more critical scenarios, exponential O2ⁿ, meaning the...

CVE-2020-5236

Waitress 1.4.2 ReDoS - CVE-2020-5236 Waitress version 1.4.2 allows a DOS attack When waitress receives a header that contains invalid characters. When a header like "Bad-header: xxxxxxxxxxxxxxx\x10" is received, it will cause the regular expression engine to catastrophically backtrack causing the...

CVE-2026-77299

A flaw was found in regexp2. A remote attacker can exploit this vulnerability by submitting a specially crafted regular expression pattern containing a large repetition quantifier applied to an empty subexpression. When evaluated, the matching engine continuously allocates memory on its internal...

DEBIAN-CVE-2026-77299

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

AZL-113137 CVE-2026-77299 affecting package dasel 2.8.1-5

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

CVE-2026-77299

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

AZL-113161 CVE-2026-77299 affecting package gh 2.102.0-2

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

EUVD-2026-117884

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

CVE-2026-77299 Regexp2: Unbounded memory amplification via large `{m}` quantifier on a zero-width subexpression

Regexp2 is a feature-rich RegExp engine for Go. Prior to version 2.3.0, when regexp2 compiles and matches a pattern containing a large fixed-count quantifier applied to a zero-width subexpression — e.g. ?:50000000 — the match engine executes the empty loop body m-1 times, pushing two integers ont...

CVE-2026-77299

The Regexp2 library for Go (prior to version 2.3.0 ) is vulnerable to unbounded memory amplification via a large {m} quantifier on a zero-width subexpression. When the engine matches a pattern like (?:){50000000}, it executes an empty loop body, pushing two integers onto the backtracking stack fo...