66 matches found
Updated python-hpack packages fix a security vulnerability
An issue was found in the python-hyper/hpack library, most commonly used as a downstream dependency of the python-hyper/h2 library an HTTP/2 client and server implementation. Unbounded variable integer decoding can cause run-away computation on malformed input leading to On^2 runtime, effectively...
Linux Distros Unpatched Vulnerability : CVE-2026-81722
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nltk PorterStemmer in versions = 3.10.2 fixed in 3.10.3 contains an inefficient-algorithmic-complexity denial of service in PorterStemmer.stem. The isconsonant...
CVE-2026-66046
Expat through 2.8.3 has quadratic complexity in storeAtts() in xmlparse.c when processing N attributes with non-normalized values, enabling remote unauthenticated DoS via a small XML document. CVSS 7.5 HIGH. No exploitation observed. Fix: upgrade to patched version (PR #1321).
CVE-2026-66046
Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an ON^2 linear scan of elementType-defaultAtts to determine CDATA status. ...
CVE-2026-66046
Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an ON^2 linear scan of elementType-defaultAtts to determine CDATA status. ...
sqlparse: Quadratic O(n²) DoS in group_comments
Summary A comment-only statement -- c\nn may cause a Denial of Service DoS. Details Location: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True. A statement made of many single-line...
BIT-PYTHON-2026-6879 Quadratic Behavior in xml.etree.ElementPath Index Predicates
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
BIT-LIBPYTHON-2026-6879 Quadratic Behavior in xml.etree.ElementPath Index Predicates
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
CVE-2026-56755 Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload
Denial of Service CPU & Memory Exhaustion via ON^2 String Concatenation in Debian Package Upload...
CVE-2026-56755
Summary: CVE-2026-56755 is a DoS vulnerability in Gitea related to Denial of Service (CPU and memory exhaustion) caused by O(N^2) string concatenation during Debian package upload. The vulnerability is exploitable locally (attack vector: LOCAL) and is described with an impact of high availability...
CVE-2026-56755 Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload
Denial of Service CPU & Memory Exhaustion via ON^2 String Concatenation in Debian Package Upload...
openjdk: Enhance Jar file processing (Oracle CPU 2026-07)
A flaw was found in OpenJDK. The processImpl method in SignatureFileVerifier exhibits On^2 time complexity when verifying JAR files where different entries have different signer combinations, potentially leading to DoS...
openjdk: Enhance Jar file processing (Oracle CPU 2026-07)
A flaw was found in OpenJDK. The processImpl method in SignatureFileVerifier exhibits On^2 time complexity when verifying JAR files where different entries have different signer combinations, potentially leading to DoS...
AZL-94157 CVE-2026-6879 affecting package docbook5-style-xsl 1.79.2-11
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
ALPINE-CVE-2026-6879
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
AZL-94299 CVE-2026-6879 affecting package python3 for versions less than 3.12.9-14
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
CVE-2026-6879
Element.findall and fully-consumed Element.iterfind exhibit On^2 time complexity when using XPath index predicates e.g. 1, last, last-N on XML documents with many same-tag siblings. Element.find is only affected when the first match is near the end of the sibling list, such as with last or...
PT-2026-47560
Impact Applications that call OptionalConverters.WithExpandoObjectConverter and deserialize untrusted data are open to a vulnerability by which an attacker can exploit a On² algorithm to burn an inordinate amount of CPU effort by adding a great many properties to an ExpandoObject, whose Add metho...
EUVD-2023-29157
Malicious code in bioql PyPI...
RLSA-2024:2980 Moderate: harfbuzz security update
HarfBuzz is an implementation of the OpenType Layout engine. Security Fixes: harfbuzz: allows attackers to trigger On^2 growth via consecutive marks CVE-2023-25193 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer...