Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to exponential backtracking in multipart [CVE-2026-28356]

Summary IBM Watson Speech Services Cartridge is vulnerable to exponential backtracking in multipart due to the parseoptionsheader function in multipart.py, that uses a regular expression with an ambiguous alternation, which can cause exponential backtracking ReDoS when parsing maliciously crafted...

USN-8290-1: Path-to-Regexp vulnerability

It was discovered that Path-to-Regexp incorrectly handled route patterns containing multiple named parameters separated by non-delimiter characters such as hyphens. An attacker could possibly use this issue to cause a denial of service via catastrophic backtracking in the generated regular...

USN-8290-1 node-path-to-regexp vulnerability

It was discovered that Path-to-Regexp incorrectly handled route patterns containing multiple named parameters separated by non-delimiter characters such as hyphens. An attacker could possibly use this issue to cause a denial of service via catastrophic backtracking in the generated regular...

PT-2026-44150

Name of the Vulnerable Software and Affected Versions Symfony versions prior to 5.4.31 Description The cleanup function in SymfonyComponentYamlParser contains regular expressions with overlapping quantifiers, specifically in the pattern used to strip the %YAML directive header. This leads to...

PT-2026-44728

Name of the Vulnerable Software and Affected Versions Symfony versions prior to 7.4 Description The JsonPath component contains an issue where the match and search filter functions compile caller-supplied patterns directly into preg match without sufficient restrictions on length or backtracking...

Astra Linux – Vulnerability in pillow

A issue was discovered in Pillow before version 8.1.1. The PDF parser allows a regular expression DoS ReDoS attack through a crafted PDF file due to a catastrophic backtracking in the regex...

Astra Linux – Vulnerability in ruby-rails-html-sanitizer

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer 1.4.4 use a inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a...

Astra Linux – Vulnerability in Pypy

Python versions prior to 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1, and 3.7.0 are vulnerable to catastrophic backtracking in the difflib.IS-LineJUNK method. An attacker could exploit this flaw to cause a denial of service. source-iocs-preserved const=ISLINEJUNK...

Astra Linux – Vulnerability in ruby-websocket-extensions

The websocket-extensions Ruby module before version 0.1.5 allowed Denial of Service DoS attacks through Regex backtracking. The extension parser could take quadratic time when parsing a header containing an unclosed string parameter value whose content was a repeated two-byte sequence of a...

Astra Linux – Vulnerability in Ruby-Nokogiri

Nokogiri is an open-source XML and HTML library for Ruby. Nokogiri contains a regular expression that is inefficient and prone to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri = 1.13.4. There are no known solutions to this...

Astra Linux – Vulnerability in Python 2.7, Pypy

In Python versions 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an HTTP server can perform Regular Expression Denial of Service ReDoS attacks against clients due to the use of urllib.request.AbstractBasicAuthHandler, which allows catastrophi...

Astra Linux – Vulnerability in ruby-loofah

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built upon Nokogiri. Loofah 2.19.1 contains a inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial ...

Astra Linux – Vulnerability in node-marked

Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression inline.reflinkSearch might cause catastrophic backtracking for certain strings, leading to a denial of service DoS attack. Any user who runs untrusted markdown using a vulnerable version of Marked, without...

kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not include stack ptr register in precision backtracking bookkeeping Yi Lai reported an issue 1 where the following warning appears in kernel dmesg: 60.643604 verifier backtracking bug 60.643635 WARNING: CPU: 10 PID: 2315...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

libssh: libssh: Denial of Service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not include stack ptr register in precision backtracking bookkeeping Yi Lai reported an issue 1 where the following warning appears in kernel dmesg: 60.643604 verifier backtracking bug 60.643635 WARNING: CPU: 10 PID: 2315...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: bonding: check xdp prog when set bond mode CVE-2025-22105 kernel: block: fix resource leak in blkregisterqueue error path CVE-2025-37980 kernel: dmaengine: idxd: fix memory leak in error...

ALSA-2026:18587 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: bonding: check xdp prog when set bond mode CVE-2025-22105 kernel: block: fix resource leak in blkregisterqueue error path CVE-2025-37980 kernel: dmaengine: idxd: fix memory leak in error...

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 the FHIRPathEngine. An attacker can exhaust system resources and cause service disruption by submitting specially crafted regular...