PYSEC-2026-2973 py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

Summary PackInfo.read uses an On^2 cumulative sum pattern where numstreams is read directly from the archive header. A crafted .7z archive with a large numstreams value causes excessive CPU consumption during SevenZipFile.init — no extraction is needed. A 50 KB archive takes 7 seconds of CPU time...

PYSEC-2026-2557 Langchain-Chatchat Uses Insufficiently Random Values

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function getfileid of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently rando...

PYSEC-2026-2558 Langchain-Chatchat Uses a Broken or Risky Cryptographic Algorithm

A flaw has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. This issue affects the function PIL.Image.tobytes of the file libs/chatchat-server/chatchat/webuipages/dialogue/dialogue.py of the component Vision Chat Paste Image Handler. This manipulation of the argument...

CVE-2026-15516 MacCMS Pro Installation Index.php step5 authorization

A vulnerability was detected in MacCMS Pro up to 2022.1000.3005. Impacted is the function step5 of the file application/install/controller/Index.php of the component Installation Module. The manipulation results in authorization bypass. The attack may be launched remotely. The attack requires a...

CVE-2026-15515 Tencent PC Manager QMUDisk Driver qmudisk64.sys uncontrolled search path

A security vulnerability has been detected in Tencent PC Manager 18.1.30242.301. This issue affects some unknown processing in the library qmudisk64.sys of the component QMUDisk Driver. The manipulation leads to uncontrolled search path. The attack must be carried out locally. The attack is...

ROS-20260713-73-0014

The vulnerability is related to algorithmic complexity. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

linkify-it: linkify-it: Denial of Service via algorithmic complexity vulnerability

A flaw was found in linkify-it, a library for recognizing links with full Unicode support. The LinkifyIt.prototype.match function, the package's primary public API, has an algorithmic complexity of ON² for inputs containing many fuzzy links or emails. This can be exploited by a remote attacker...

EUVD-2026-42725

A security vulnerability has been detected in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185RT10 and EX200 up to 20260906. Affected by this issue is some unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. The manipulation leads to least privilege...

ROS-20260710-73-0015

The vulnerability of the Go programming language’s MIME component is related to its algorithmic complexity. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures by using a specially created MIME header...

CVE-2026-15271 TOTOLINK EX200 Web boa.conf least privilege violation

A security vulnerability has been detected in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185RT10 and EX200 up to 20260906. Affected by this issue is some unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. The manipulation leads to least privilege...

CVE-2026-15271

CVE-2026-15271 affects TOTOLINK models A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185R_T10 and EX200. The issue concerns an unspecified functionality in the Web Interface component, specifically the file /etc/boa/boa.conf, where manipulation can lead to a least privilege violation . The attack ...

EUVD-2026-42692

A weakness has been identified in D-link DIR-823G 1.0.2B0520181207. Affected by this vulnerability is an unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. Executing a manipulation can lead to least privilege violation. The attack can be launched remotely. The...

CVE-2026-55206 py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, PackInfo.read in archiveinfo.py used an On^2 cumulative sum pattern for attacker-controlled numstreams values parsed from archive headers, allowing a crafted...

CVE-2026-55206

CVE-2026-55206 (py7zr) affects the Python-based 7z library py7zr. The root cause is an O(n^2) cumulative-sum implementation in PackInfo._read() (archiveinfo.py) that parses attacker-controlled numstreams from archive headers. This causes excessive CPU usage during SevenZipFile.init() before extra...

CVE-2026-56669

Elysia (a TypeScript framework for request validation, type inference, OpenAPI docs, and client-server communication) contains a vulnerability (CVE-2026-56669) caused by using getAll in form data normalization for multipart/form-data endpoints prior to 1.4.29. This leads to quadratic growth in wo...

CVE-2026-56669 Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to 1.4.29, Elysia uses getAll in form data normalization for multipart/form-data endpoints, causing the amount of work to grow quadratically with the number of...

Inefficient Algorithmic Complexity

Overview org.webjars.npm:js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in merge key handling during YAML parsing, where each mapping in a chain re-enumerates the keys inherited from the previous...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity through the parsing process in formatting.py when handling long sequences of , ==, or ^^ markers. An attacker can cause excessive CPU consumption by submitting specially crafted input containing long...

Inefficient Algorithmic Complexity

Overview org.webjars.npm:linkify-it is a Links recognition library with FULL unicode support Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the mailto: validator scan-loop on attacker-supplied text. An attacker can cause excessive CPU consumption by...

CVE-2026-59887

linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test and .match can be invoked at every mailto: occurrence and scan the remaining input through srcemailname in lib/re.mjs, causing On^2 CPU consumption on crafted user text...