FastAPI Guard has a regex bypass

SummaryThe regular expression patched to mitigate the ReDoS vulnerability by limiting the length of string fails to catch inputs that exceed this limit. DetailsIn version 3.0.1, you can find a commit like the one in the link below, which was made to prevent...

PYSEC-2026-1360 FastAPI Guard has a regex bypass

Summary The regular expression patched to mitigate the ReDoS vulnerability by limiting the length of string fails to catch inputs that exceed this limit. Details In version 3.0.1, you can find a commit like the one in the link below, which was made to prevent ReDoS...

PYSEC-2026-1359 fastapi-guard is vulnerable to ReDoS through inefficient regex

Summary fastapi-guard detects penetration attempts by using regex patterns to scan incoming requests. However, some of the regex patterns used in detection are extremely inefficient and can cause polynomial complexity backtracks when handling specially crafted inputs. It is not as severe as...

fastapi-guard is vulnerable to ReDoS through inefficient regex

Summaryfastapi-guard detects penetration attempts by using regex patterns to scan incoming requests. However, some of the regex patterns used in detection are extremely inefficient and can cause polynomial complexity backtracks when handling specially crafted inputs.It is not as severe as...

GO-2026-5874 Rancher Fleet has Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components in github.com/rancher/fleet

Rancher Fleet has Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components in github.com/rancher/fleet...

Flask-CORS improper regex path matching vulnerability

corydolphin/flask-cors version 5.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex...

PYSEC-2026-1384 Flask-CORS improper regex path matching vulnerability

corydolphin/flask-cors version 5.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex...

H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

A vulnerability in the /3/Parse endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service DoS attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an...

H2O Vulnerable to Denial of Service (DoS) via `/3/ParseSetup` Endpoint

A vulnerability in the /3/ParseSetup endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service DoS attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity,...

PYSEC-2026-1445 H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

A vulnerability in the /3/Parse endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service DoS attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an...

PYSEC-2026-1674 MobSF Partial Denial of Service (DoS)

Partial Denial of Service DoS Product: MobSF Version: v4.2.9 CWE-ID: CWE-1287: Improper Validation of Specified Type of Input CVSS vector v.4.0: 6.9 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS vector v.3.1: 6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Description: DoS in the Scans...

MobSF Partial Denial of Service (DoS)

Partial Denial of Service DoSProduct: MobSFVersion: v4.2.9CWE-ID: CWE-1287: Improper Validation of Specified Type of InputCVSS vector v.4.0: 6.9 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVSS vector v.3.1: 6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDescription: DoS in the Scans Results an...

Inefficient Regular Expression Complexity in langflow

A vulnerability classified as problematic was found in Langflow up to 1.0.18. Affected by this vulnerability is an unknown functionality of the file \src\backend\base\langflow\interface\utils.py of the component HTTP POST Request Handler. The manipulation of the argument remainingtext leads to...

TorBot vulnerable to Inefficient Regular Expression Complexity in validate_link

SummaryThe torbot.modules.validators.validatelink function uses the python-validators URL validation regex. This particular regular expression has an exponential complexity which allows an attacker to cause an application crash using a well-crafted argument...

PYSEC-2026-1969 TorBot vulnerable to Inefficient Regular Expression Complexity in validate_link

Summary The torbot.modules.validators.validatelink function uses the python-validators URL validation regex. This particular regular expression has an exponential complexity which allows an attacker to cause an application crash using a well-crafted argument.. Details...

Security Bulletin: Platform Navigator and Automation Assets in IBM Cloud Pak for Integration are vulnerable to vulnerability in helpers

Summary Platform Navigator and Automation Assets in IBM Cloud Pak for Integration are vulnerable to vulnerability in helpers. CVE-2025-27789 The vulnerability have been addressed. Vulnerability Details CVEID:CVE-2025-27789 DESCRIPTION: Babel is a compiler for writing next generation JavaScript...

PT-2026-56275

Name of the Vulnerable Software and Affected Versions String::Util versions prior to 1.36 Description String::Util for Perl is susceptible to a regular expression denial of service. The trim and rtrim functions use a regular expression to strip trailing whitespace. Because the s pattern matches...

Regular Expression Denial of Service (ReDoS)

Overview vllm is an A high-throughput and memory-efficient inference and serving engine for LLMs Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the structuredoutputs.regex parameter, which allows user-supplied regular expressions to be passed...

PYSEC-2026-2304

vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, the structuredoutputs.regex API parameter passes a user-supplied regular expression string directly to the grammar compiler backends with no compilation timeout; in the xgrammar backend the stri...

CVE-2026-55574

vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, the structuredoutputs.regex API parameter passes a user-supplied regular expression string directly to the grammar compiler backends with no compilation timeout; in the xgrammar backend the stri...