Regular Expression Denial of Service (ReDoS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the SKILLMENTIONRE and stripre regex patterns in the middleware process. An attacker can cause the application to become unresponsive for all users by sending...

PT-2026-59155

Summary The RegexMatching check in the giskard-checks package passes a user-supplied regular expression pattern directly to Python's re.search without any timeout, complexity guard, or pattern validation. An attacker who can control the regex pattern or the text being matched can craft inputs tha...

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 FHIRPath expression evaluation. An attacker can exhaust system CPU resources by submitting specially crafted regular expressions th...

HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS

Summary The fix for CVE-2026-45367 added RegexTimeout protection to the matches function in DSTU2016MAY, DSTU3, R4, R4B, and R5, but the DSTU2 module was incompletely patched. In org.hl7.fhir.dstu2, replaceMatches was updated while matches at line 2462 still calls the raw String.matchessw without...

HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint

All implementations of FHIRPathEngine accept arbitrary FHIRPath expressions and evaluate them without input validation. The FHIRPath functions matches, matchesFull, and replaceMatches pass user-controlled regular expressions directly to Java's Pattern.compile and String.replaceAll without...

CVE-2025-54364

Microsoft Knack 0.12.0 allows Regular expression Denial of Service ReDoS in the knack.introspection module. optiondescriptions employs an inefficient regular expression pattern: "\s:param\s+.+?\s:." that is susceptible to catastrophic backtracking when processing crafted docstrings containing a...