multipart vulnerable to ReDoS in `parse_options_header()`

SummaryThe parseoptionsheader function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking ReDoS when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for denial of service DoS attacks against web...

PYSEC-2026-2670 multipart vulnerable to ReDoS in `parse_options_header()`

Summary The parseoptionsheader function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking ReDoS when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for denial of service DoS attacks against web...

CVE-2026-13221: Integer Overflow or Wraparound

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 alternation of more than 65535 fixed string branches is compiled into a trie in Perlstudychunk. When such branches are combined into a trie, the...

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...

CVE-2026-13221: Integer Overflow or Wraparound

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 alternation of more than 65535 fixed string branches is compiled into a trie in Perlstudychunk. When such branches are combined into a trie, the...

PT-2026-59155

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...

PT-2026-59318

Summary The parse options header function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking ReDoS when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for denial of service DoS attacks against web...

PT-2026-59543

Summary MCPToolIndex.search tools 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...

EulerOS 2.0 SP12 : perl (EulerOS-SA-2026-2612)

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...

Security Bulletin: Multiple Vulnerabilities in Minimatch bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage include the minimatch library, which is susceptible to multiple Denial of Service DoS vulnerabilities due to algorithmic inefficiencies and catastrophic regular expression backtracking. A remote attacker could exploit these...

CVE-2026-46413 Discourse: Regular users can route multipart uploads into the admin backup store

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5...

CVE-2026-46413

Discourse (open-source discussion platform) contains a vulnerability tracked as CVE-2026-46413 where, prior to versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This could allow una...

CVE-2026-46413 Discourse: Regular users can route multipart uploads into the admin backup store

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5...

GHSA-PX5M-H76G-P7P8 YesWiki has Unsafe eval() in its Formula Calculato, Leading to Remote Code Execution & Denial of Service

Summary An unsafe execution vulnerability exists in the Bazar form field calculator CalcField.php of YesWiki. The application attempts to sanitize user-defined mathematical formulas using a complex recursive regular expression before passing them to the PHP eval function. This implementation is...

YesWiki has Unsafe eval() in its Formula Calculato, Leading to Remote Code Execution & Denial of Service

Summary An unsafe execution vulnerability exists in the Bazar form field calculator CalcField.php of YesWiki. The application attempts to sanitize user-defined mathematical formulas using a complex recursive regular expression before passing them to the PHP eval function. This implementation is...

EUVD-2026-35181

YesWiki has Unsafe eval in its Formula Calculato, Leading to Remote Code Execution & Denial of Service...

CVE-2026-59220 Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.2 before 0.10.0, the SKILLMENTIONRE and stripre regular expressions in backend/openwebui/utils/middleware.py parsed skill mentions with overlapping quantifiers, allowing an authenticated chat message...

CVE-2026-59220 Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.2 before 0.10.0, the SKILLMENTIONRE and stripre regular expressions in backend/openwebui/utils/middleware.py parsed skill mentions with overlapping quantifiers, allowing an authenticated chat message...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the matches, matchesFull, and replaceMatches functions in FHIRPath expression evaluation. An attacker can exhaust system CPU resources by submitting specially crafted regular expressions th...

Regular Expression Denial of Service (ReDoS)

Amendment This was deemed not a vulnerability. Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the matches, matchesFull, and replaceMatches functions in FHIRPath expression evaluation. An attacker can exhaust system CPU resources by...