CVE-2026-82398

pypdf , a pure-Python PDF library, is vulnerable to excessive resource consumption in the read_until_whitespace function within pypdf/_utils.py. When processing a crafted PDF containing a long sequence of non-whitespace bytes, the function performs immutable bytes concatenation in a one-byte loop...

CVE-2026-75140

A flaw was found in jsoup. A remote attacker could exploit an uncontrolled resource consumption vulnerability in the XmlTreeBuilder by providing a deeply nested XML document with uniquely-namespaced elements. This causes the builder to copy the entire inherited namespace map on every start elemen...

net/mail: golang: net/mail: Denial of Service via pathological email address parsing

A flaw was found in the net/mail package within the Go standard library. A remote attacker could provide specially crafted, pathological email addresses. When these malformed email addresses are parsed by the consumePhrase function, it can lead to excessive resource consumption due to quadratic...

PT-2026-84050

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.15.0 Description A flaw exists where an attacker can craft a PDF file that triggers long runtimes. This occurs when the read until whitespace function in pypdf/ utils.py processes a stream containing a long sequence o...

Important: golang

Issue Overview: Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures. CVE-2026-33818 When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client...

AlmaLinux 10 : golang (ALSA-2026:60306)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:60306 advisory. encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal CVE-2026-33818 net/url: golang: golang net/url: Denial o...

CVE-2026-40014

An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...

UBUNTU-CVE-2026-40014

An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...

GHSA-8X48-8G7J-RQXP Duplicate Advisory: Quadratic-time DoS in PorterStemmer via long runs of 'y'

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ww6m-cw3f-q94g. This link is maintained to preserve external references. Original Description nltk PorterStemmer in versions = 3.10.2 fixed in 3.10.3 contains an inefficient-algorithmic-complexity denial of...

Duplicate Advisory: Quadratic-time DoS in PorterStemmer via long runs of 'y'

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ww6m-cw3f-q94g. This link is maintained to preserve external references. Original Description nltk PorterStemmer in versions = 3.10.2 fixed in 3.10.3 contains an inefficient-algorithmic-complexity denial of...

GHSA-HQV3-XM29-P9HQ Duplicate Advisory: Quadratic CPU Exhaustion in `XMLCorpusView._read_xml_fragment()`

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-vp2x-qp44-57v7. This link is maintained to preserve external references. Original Description NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView.readxmlfragment that...

Duplicate Advisory: Quadratic CPU Exhaustion in `XMLCorpusView._read_xml_fragment()`

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-vp2x-qp44-57v7. This link is maintained to preserve external references. Original Description NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView.readxmlfragment that...

CVE-2026-81725

NLTK before 3.10.3 contains a regular expression denial of service vulnerability in Pl196xCorpusReader that allows attackers to cause quadratic CPU consumption by supplying malformed TEI blocks with many unmatched opening tags. Attackers can exploit lazy regex patterns in the readblock method...

CVE-2026-81723

NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView.readxmlfragment that rescans accumulated XML fragments on every 1 KiB block read. Attackers can provide malformed XML corpus files to cause severe CPU consumption and denial of service through affected...

UBUNTU-CVE-2026-81725

NLTK before 3.10.3 contains a regular expression denial of service vulnerability in Pl196xCorpusReader that allows attackers to cause quadratic CPU consumption by supplying malformed TEI blocks with many unmatched opening tags. Attackers can exploit lazy regex patterns in the readblock method...

UBUNTU-CVE-2026-81722

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 helper walks backward over the entire run of trailing 'y' characters on every call, and measure invokes it for each stem position, causin...

CVE-2026-81722

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 helper walks backward over the entire run of trailing 'y' characters on every call, and measure invokes it for each stem position, causin...

CVE-2026-81723

NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView.readxmlfragment that rescans accumulated XML fragments on every 1 KiB block read. Attackers can provide malformed XML corpus files to cause severe CPU consumption and denial of service through affected...

CVE-2026-81725

NLTK before 3.10.3 contains a regular expression denial of service vulnerability in Pl196xCorpusReader that allows attackers to cause quadratic CPU consumption by supplying malformed TEI blocks with many unmatched opening tags. Attackers can exploit lazy regex patterns in the readblock method...

UBUNTU-CVE-2026-81723

NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView.readxmlfragment that rescans accumulated XML fragments on every 1 KiB block read. Attackers can provide malformed XML corpus files to cause severe CPU consumption and denial of service through affected...