CVE-2026-55574 vLLM: ReDoS via structured_outputs.regex compiled without timeout in xgrammar and outlines backends

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...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: fixed the issue of resolving backrefs for inline extents followed by prealloc extents. If a file consists of an inline extent followed by a regular or prealloc extent, then a legitimate attempt to resolve a logical...

LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

Summary The replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a backreference to the matched substring. The filter only charges memoryLimit for the input string length, not the amplified output. An attacker can achieve exponential memory amplificati...

Regular Expression Denial of Service Induced by Backreferences

This paper presents the first systematic study of denial-of-service vulnerabilities in Regular Expressions with Backreferences REwB. We introduce the Two-Phase Memory Automaton 2PMFA, an automaton model that precisely captures REwB semantics. Using this model, we derive necessary conditions under...

SUSE CVE-2024-38475

Improper escaping of output in modrewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure...

CVE-2024-38475 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.

Improper escaping of output in modrewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure...

SUSE CVE-2007-4770

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...

SUSE CVE-2015-2327

PCRE before 8.36 mishandles the /a\2|a\g/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service segmentation fault or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a...

pcre: infinite recursion compiling pattern with zero-repeated groups that include recursive back reference (8.36/19)

PCRE before 8.36 mishandles the /a\2|a\g/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service segmentation fault or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a...

pcre: buffer overflow caused by recursive back reference by name within certain group (8.38/4)

Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote attackers to execute arbitrary code via a crafted regular expression, as demonstrated by /^?P=B?P=B?J:?Pc?Pa?P=BWGXCREDITS/, a different vulnerability than CVE-2015-8384...

Debian DSA-1511-1 : libicu - various

Several local vulnerabilities have been discovered in libicu, International Components for Unicode, The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2007-4770 libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process...

Design/Logic Flaw

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...

DEBIAN-CVE-2007-4770

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...

CVE-2007-4770

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...

CVE-2007-4770

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...

CVE-2007-4770

libicu in International Components for Unicode ICU 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero aka \0, which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames...