Astra Linux – Vulnerability in JRuby

In Ruby, WEBrick::HTTPAuth::DigestAuth from versions 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 causes a denial-of-service attack due to a regular expression issue related to looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the internet or a trusted...

CVE-2026-81725

NLTK before 3.10.3 contains a regular expression denial of service vulnerability in Pl196xCorpusReader that allows attackers to cause quadratic CPU consumption by supplying malformed TEI blocks with many unmatched opening tags. Attackers can exploit lazy regex patterns in the readblock method...

CVE-2026-53504

Thumbor contains a Regex Denial of Service (ReDoS) vulnerability in the convolution filter that triggers exponential backtracking on crafted repeated numeric input. This affects versions prior to 7.8.0 and can cause a URL request to exhaust processing time. The issue is fixed in 7.8.0. Per the co...

openSUSE 16: jline3 / jline3-builtins / jline3-console / jline3-console-ui / etc (openSUSE-SU-2026:21423-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21423-1 advisory. - CVE-2026-56740: unauthenticated remote memory exhaustion via unbounded Telnet NEW-ENVIRON variables bsc1269021. - CVE-2026-56741:...

CVE-2026-48125 UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`

UAParser.js is a JavaScript library to detect browsers, operating systems, CPUs, and devices from user-agent data. From 2.0.1 until 2.0.10, a regular expression denial-of-service vulnerability exists when using the Client Hints API. By sending a crafted Sec-CH-UA-Model header to an application th...

PYSEC-2026-2651 Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

Summary A ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with...

PYSEC-2026-2489 Giskard has a Regular Expression Denial of Service (ReDoS) in RegexMatching Check

Summary The RegexMatching check in the giskard-checks package passes a user-supplied regular expression pattern directly to Python's re.search without any timeout, complexity guard, or pattern validation. An attacker who can control the regex pattern or the text being matched can craft inputs tha...

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...

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...

PYSEC-2026-1980 Hugging Face Transformers vulnerable to Regular Expression Denial of Service (ReDoS) in the AdamWeightDecay optimizer

The huggingface/transformers library, versions prior to 4.53.0, is vulnerable to Regular Expression Denial of Service ReDoS in the AdamWeightDecay optimizer. The vulnerability arises from the douseweightdecay method, which processes user-controlled regular expressions in the includeinweightdecay...

PYSEC-2026-1275 copyparty allows Regex Denial of Service (ReDoS) in the upload listing

Summary The filter parameter for the "Recent uploads" page allows arbitrary Regexes. If this feature is enabled which is the default, an attacker can craft a filter which deadlocks the server. PoC https://127.0.0.1:3923/?ru&filter=.++x Impact The server becomes fully inaccessible for a long time...

PYSEC-2026-1228 Calibre Web and Autocaliweb have a ReDoS vulnerability

ReDoS in stripwhitespaces function in cps/stringhelper.py in Calibre Web and Autocaliweb allows unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login. This issue affects Calibre Web: 0.6.24...

GHSA-X4HG-HFWF-P9MW @asymmetric-effort/nogginlessdom vulnerable to ReDoS via user-controlled regex in HTMLInputElement pattern validation

Summary The HTMLInputElement.checkValidity method constructed a RegExp directly from the user-controlled pattern property without any sanitization or timeout protection. This allowed an attacker to inject a regex with catastrophic backtracking, freezing the event loop. Fix Fixed in commit...

CVE-2025-71379

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-2025-71379

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-2026-44496

A flaw was found in Axios. A remote attacker, by influencing the XSRF cookie name in a browser environment, could cause the application to construct a regular expression that leads to excessive processing. This can result in a client-side Denial of Service DoS, where the affected browser tab may...

CVE-2026-52778

YesWiki (PHP-based wiki) exposes a vulnerability in the Bazar form field calculator (CalcField.php) present before version 4.6.6. The code attempts to sanitize user-defined mathematical formulas using a complex recursive regex prior to passing them to PHP eval(), creating a surface for Regular Ex...

CVE-2025-65122

Regex Denial of Service in youtube-regex npm package through version 1.0.5...

CVE-2026-10692 johnhuang316 code-index-mcp search_code_advanced is_safe_regex_pattern redos

A weakness has been identified in johnhuang316 code-index-mcp up to 2.14.0. Affected is the function issaferegexpattern of the component searchcodeadvanced. Executing a manipulation of the argument regex can lead to inefficient regular expression complexity. It is possible to launch the attack...

WS-2019-0258

In Simple-markdown, versions prior to 0.5.2 are vulnerable to Regex Denial of Service ReDoS. The SimpleMarkdown.defaultInlineParse function has significantly degraded performance when parsing inline code blocks...