EUVD-2026-42127

String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service. The trim and rtrim functions stripped trailing whitespace with s/\s$//u. Because \s matches greedily and the $ anchor fails whenever a non-whitespace character follows the whitespace, the regex...

CVE-2026-14895 String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service

String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service. The trim and rtrim functions stripped trailing whitespace with s/\s$//u. Because \s matches greedily and the $ anchor fails whenever a non-whitespace character follows the whitespace, the regex...

CVE-2026-14895

String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service. The trim and rtrim functions stripped trailing whitespace with s/\s$//u. Because \s matches greedily and the $ anchor fails whenever a non-whitespace character follows the whitespace, the regex...

PYSEC-2026-1359 fastapi-guard is vulnerable to ReDoS through inefficient regex

Summary fastapi-guard detects penetration attempts by using regex patterns to scan incoming requests. However, some of the regex patterns used in detection are extremely inefficient and can cause polynomial complexity backtracks when handling specially crafted inputs. It is not as severe as...

PYSEC-2026-1979 Transformers vulnerable to ReDoS attack through its SETTING_RE variable

A Regular Expression Denial of Service ReDoS vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the SETTINGRE variable within the transformers/commands/chat.py file. The...

PYSEC-2026-1440 H2O Vulnerable to Denial of Service (DoS) via `/3/ParseSetup` Endpoint

A vulnerability in the /3/ParseSetup endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service DoS attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity,...

PYSEC-2026-1403 ReDoS in giskard's transformation.py (GHSL-2024-324)

ReDoS in Giskard text perturbation detector A Remote Code Execution ReDoS vulnerability was discovered in Giskard component by the GitHub Security Lab team. When processing datasets with specific text patterns with Giskard detectors, this vulnerability could trigger exponential regex evaluation...

USN-8515-1: Addressable vulnerability

It was discovered that Addressable incorrectly handled certain URI templates, generating regular expressions vulnerable to catastrophic backtracking. An attacker could use this issue to craft a URI that, when matched against a vulnerable template, causes excessive resource consumption, leading to...

PT-2026-56275

Name of the Vulnerable Software and Affected Versions String::Util versions prior to 1.36 Description String::Util for Perl is susceptible to a regular expression denial of service. The trim and rtrim functions use a regular expression to strip trailing whitespace. Because the s pattern matches...

SUSE CVE-2026-44496

Axios is a promise based HTTP client for the browser and Node.js. Axios versions before 0.32.0 on the 0.x line and before 1.16.0 on the 1.x line build a regular expression from the configured XSRF cookie name without escaping regex metacharacters. In standard browser environments, an attacker who...

Regular Expression Denial of Service (ReDoS)

Overview org.webjars.npm:jsonata is a JSON query and transformation language Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the $toMillis function. An attacker can cause resource exhaustion by providing specially crafted inputs that trigger...

soupsieve: Soupsieve: Denial of Service via crafted CSS selector strings

A flaw was found in soupsieve, a CSS selector library. This vulnerability allows a remote attacker to cause a Denial of Service DoS by supplying specially crafted, untrusted CSS selector strings. The flaw occurs due to a regular expression vulnerable to catastrophic backtracking when processing a...

Astra Linux – Vulnerability in libssh

A flaw was discovered in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could create specific hostnames that, when processed by the matchpattern function, could lead to inefficient regular expression backtracking. This could cause timeouts and resource...

CVE-2025-71379 vllm - Regular Expression Denial of Service in Multiple Components

vLLM versions = 0.6.3 and 0.9.0 contain multiple regular expression denial of service ReDoS vulnerabilities. Several regex patterns — in vllm/lora/utils.py, the phi4mini tool parser, and the OpenAI-compatible serving chat endpoint — are susceptible to catastrophic backtracking. An attacker...

CVE-2026-45617

CVE-2026-45617 affects LiquidJS, where the built‑in strip_html filter in versions 10.25.7 and earlier uses a backtracking regex that causes severe CPU backpressure (ReDoS) on inputs with unclosed [removed], , or

CVE-2026-45617 LiquidJS: ReDoS via Quadratic Backtracking in `strip_html` Filter Regex

LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, the built-in striphtml filter uses a regex containing four flawed lazy-quantified alternatives, leading to ReDoS via quadratic backtracking. When the input contains many script...

CVE-2026-45617 LiquidJS: ReDoS via Quadratic Backtracking in `strip_html` Filter Regex

LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, the built-in striphtml filter uses a regex containing four flawed lazy-quantified alternatives, leading to ReDoS via quadratic backtracking. When the input contains many script...

HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS

Summary The fix for CVE-2026-45367 added RegexTimeout protection to the matches function in DSTU2016MAY, DSTU3, R4, R4B, and R5, but the DSTU2 module was incompletely patched. In org.hl7.fhir.dstu2, replaceMatches was updated while matches at line 2462 still calls the raw String.matchessw without...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the matches function in the FHIRPathEngine. An attacker can exhaust system resources and cause service disruption by submitting specially crafted regular expressions that trigger excessive...

GHSA-FXJ4-P9XP-37V5 HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS

Summary The fix for CVE-2026-45367 added RegexTimeout protection to the matches function in DSTU2016MAY, DSTU3, R4, R4B, and R5, but the DSTU2 module was incompletely patched. In org.hl7.fhir.dstu2, replaceMatches was updated while matches at line 2462 still calls the raw String.matchessw without...