CVE-2026-92238

A flaw was found in Thunderbird where a maliciously constructed mail header could lead to ambiguous parsing. This vulnerability could result in multiple mail header fields being incorrectly interpreted as one, or cause memory safety violations. A remote attacker could potentially exploit this to...

CVE-2026-92238

A maliciously constructed mail header in Mozilla Thunderbird could cause multiple fields to be parsed as one or lead to memory safety violations . This vulnerability has been addressed in Thunderbird versions 156 , 140.16 , and 153.3 . For Debian users, the issue is resolved in versions 1:140.16....

CVE-2026-92238 Ambiguous parsing of mail headers

A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential memory safety violations. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3...

EUVD-2026-70736

Colord: Slow rejection of oversized malformed color strings...

PT-2026-85252

Name of the Vulnerable Software and Affected Versions Colord versions prior to 2.9.4 Description Synchronous CSS color string matchers use an ambiguous numeric regular expression that allows digits to be divided between overlapping quantifiers in quadratically many ways when malformed input is...

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...

EUVD-2026-40439

Capgo before 12.128.2 allows multiple public channels for the same app and platform to coexist simultaneously, while unnamed /updates requests without defaultChannel implicitly resolve to a single hidden winner channel. An authorized app or channel manager can create ambiguous default update stat...

Incorrect Behavior Order: Validate Before Canonicalize

Overview Affected versions of this package are vulnerable to Incorrect Behavior Order: Validate Before Canonicalize in the parsing of Git objects with malformed or ambiguous commit or tag objects. An attacker can cause inconsistent interpretation of object metadata or signature validation by...

EUVD-2026-23866

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds wit...

CVE-2026-3902

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGIRequest allows a remote attacker to spoof headers by exploiting an ambiguous mapping of two header variants with hyphens or with underscores to a single version with underscores. Earlier, unsupported Django...

PT-2026-30867

Name of the Vulnerable Software and Affected Versions Django versions 6.0 through 6.0.3, 5.2 through 5.2.12, and 4.2 through 4.2.29 Description The ASGIRequest component allows a remote attacker to spoof headers due to an ambiguous mapping of header variants with hyphens or with underscores to a...

[SECURITY] Fedora 43 Update: python-ply-3.11-33.fc43

PLY is a straightforward lex/yacc implementation. Here is a list of its essential features: It is implemented entirely in Python. It uses LR-parsing which is reasonably efficient and well suited for larger grammars. PLY provides most of the standard lex/yacc features including support for empty...

[SECURITY] Fedora 44 Update: python-ply-3.11-33.fc44

PLY is a straightforward lex/yacc implementation. Here is a list of its essential features: It is implemented entirely in Python. It uses LR-parsing which is reasonably efficient and well suited for larger grammars. PLY provides most of the standard lex/yacc features including support for empty...

Regular Expression Denial of Service (ReDoS)

Overview multipart is a Parser for multipart/form-data Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS in the parseoptionsheader function due to the use of a regular expression with ambiguous alternation. An attacker can cause significant resource...

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...

GHSA-P2M9-WCP5-6QW3 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...

GO-2026-4638 WeKnora Vulnerable to Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection in github.com/Tencent/WeKnora

WeKnora Vulnerable to Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection in github.com/Tencent/WeKnora...

CVE-2026-30856 WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming...

CVE-2026-30856 WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming...

CVE-2026-30856 WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming...