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...

Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

SummaryA 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 exponenti...

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...

PraisonAI Has ReDoS via Unvalidated User-Controlled Regex in MCPToolIndex.search_tools()

SummaryMCPToolIndex.searchtools compiles a caller-supplied string directly as a Python regular expression with no validation, sanitization, or timeout. A crafted regex causes catastrophic backtracking in the re engine, blocking the Python thread for hundreds of seconds and causing a complete...

Pygments has Regular Expression Denial of Service (ReDoS) due to Inefficient Regex for GUID Matching

A security flaw has been discovered in pygments before 2.20.0. The impacted element is the function AdlLexer of the file pygments/lexers/archetype.py. The manipulation results in inefficient regular expression complexity. The attack is only possible with local access. The exploit has been release...

PT-2026-59094

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

Linux Distros Unpatched Vulnerability : CVE-2026-13221

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.10 produce silently incorrect regular expression matches when an...

PT-2026-59614

A security flaw has been discovered in pygments before 2.20.0. The impacted element is the function AdlLexer of the file pygments/lexers/archetype.py. The manipulation results in inefficient regular expression complexity. The attack is only possible with local access. The exploit has been release...

PT-2026-57822

Name of the Vulnerable Software and Affected Versions Perl versions prior to 5.44 Description Incorrect regular expression matches occur when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl study chunk. A trie is a specialized tree-like data structure used...

PT-2026-59691

Summary The CSS selector parser in soupsieve the CSS selector engine for Beautiful Soup 4 contains a regular expression vulnerable to catastrophic backtracking. When processing an attribute selector with an unterminated quoted value, the VALUE regex pattern in css parser.py enters exponential...

PT-2026-59301

Summary A ReDoS Regular Expression Denial of Service vulnerability in LINK TITLE RE 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...

glib2: Fix of 4 CVEs

CVE-2026-58010: heap buffer over-read off-by-one in gvstupleisnormal in glib/gvariant-serialiser.c when checking untrusted tuple GVariant data for normal form - CVE-2026-58012: buffer over-read in gregexreplace/gregexreplaceeval when a GREGEXRAW match ends in a truncated multi-byte sequence and a...

Malicious code in transform-es2015-sticky-regex (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector eadf76ef8e123f9ce50c2910c71912996a3d079a91076ffed8d29830a1687ae1 package.json declares both a dependency and a devDependency on 'transform-es2015-sticky-regex' pointing at...

MAL-2026-10136 Malicious code in transform-es2015-sticky-regex (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector eadf76ef8e123f9ce50c2910c71912996a3d079a91076ffed8d29830a1687ae1 package.json declares both a dependency and a devDependency on 'transform-es2015-sticky-regex' pointing at...

PT-2026-60780

Name of the Vulnerable Software and Affected Versions HTTP::Date versions prior to 6.08 Description An issue exists where the parse date function, which is also used by str2time, is susceptible to Regular Expression Denial of Service ReDoS. This occurs because several regex patterns use unbounded...

EulerOS 2.0 SP12 : perl (EulerOS-SA-2026-2552)

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-2026-54760

Langroid is a framework for building large-language-model-powered applications. Prior to version 0.65.1, the SQLChatAgent SQL-injection mitigation, with default allowdangerousoperations=False, combines a raw-text regex blocklist DANGEROUSSQLPATTERNS with a sqlglot SELECT-only statement allowlist...

CVE-2026-54760

CVE-2026-54760: Langroid’s SQLChatAgent dangerous-function blocklist can be bypassed. Prior to version 0.65.1, the mitigation combines a raw-text regex (_DANGEROUS_SQL_PATTERNS) with a sqlglot-based SELECT-only allowlist. Attackers can defeat the regex using PostgreSQL forms such as quoted identi...

Malicious code in optimize-regex (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 9b77c2c0dab050d3a675407d74b649c73bfc107da05191cf041fb66e0346073a package.json declares optimize-regex as a dependency and devDependency of itself, resolved via a plain-HTTP tarball URL at...

CVE-2026-59220

Open WebUI (self-hosted AI platform) has a ReDoS in theSkill mention handling. In versions before 0.10.0, the SKILL_MENTION_RE and strip_re regexes in backend/open_webui/utils/middleware.py parsed mentions with overlapping quantifiers, allowing an authenticated user to send a message containing ...