Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
7 results
Oct 3, 2026In Bouncy Castle for Java before 1.86, the Messaging Layer Security (MLS, RFC 9420) implementation did not bind an X.509 credential to a LeafNode's signature_keCVE-2026-71885 · Other software · Legion of the Bouncy Castle Inc. · reported by 91579145-5d7b-4cc5-b925-a0262ff19630Critical 9.2
In Bouncy Castle for Java before 1.86, the Messaging Layer Security (MLS, RFC 9420) implementation did not bind an X.509 credential to a LeafNode's signature_key. LeafNode.verify() checked a leaf's signature against the signature_key carried in the leaf itself, while the credential's X.509 certificate chain was stored but never parsed or validated, so the end-entity certificate's public key was never required to match signature_key as RFC 9420 sec. 5.3 requires. A party could therefore present another party's certificate as its credential while signing the leaf, and the enclosing KeyPackage, with an unrelated key, and be accepted under that other party's identity through KeyPackage.verify() and the Group leaf-validation path. In a deployment that admits external commits without an independent credential-admission check, an unauthenticated attacker could be admitted under a victim's X.509 identity, evict the victim (resynchronization compares whole credentials rather than signing keys), derive the current epoch, decrypt subsequent group messages, and send messages accepted as the victim. TreeKEM.LeafNode now requires the end-entity certificate's subject public key, in the cipher sui
- Product
- BC-JAVA
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 21, 2012Use-after-free vulnerability in the nsEditor::FindNextLeafNode function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allowCVE-2012-4213 · Computers, phones & browsers · Mozilla · reported by MITREHigh 9.3
Use-after-free vulnerability in the nsEditor::FindNextLeafNode function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.opensuse.orglists.opensuse.org
Jun 9, 2005The fetchnews NNTP client in leafnode 1.11.2 and earlier can hang while waiting for input that never arrives, which allows remote NNTP servers to cause a denialCVE-2005-1911 · Other software · Leafnode · reported by MITREMedium 5
The fetchnews NNTP client in leafnode 1.11.2 and earlier can hang while waiting for input that never arrives, which allows remote NNTP servers to cause a denial of service (news loss).
- Product
- Leafnode
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordleafnode.sourceforge.netleafnode.sourceforge.net
May 5, 2005fetchnews in leafnode 1.9.48 to 1.11.1 allows remote NNTP servers to cause a denial of service (crash) by closing the connection while fetchnews is reading (1) CVE-2005-1453 · Other software · Leafnode · reported by MITREMedium 5
fetchnews in leafnode 1.9.48 to 1.11.1 allows remote NNTP servers to cause a denial of service (crash) by closing the connection while fetchnews is reading (1) an article header or (2) an article body, which also prevents fetchnews from querying other servers.
- Product
- Leafnode
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comleafnode.sourceforge.net
Dec 31, 2004fetchnews in leafnode 1.9.47 and earlier allows remote attackers to cause a denial of service (process hang) via an empty NNTP news article with missing mandatoCVE-2004-2068 · Other software · Leafnode · reported by MITREMedium 5
fetchnews in leafnode 1.9.47 and earlier allows remote attackers to cause a denial of service (process hang) via an empty NNTP news article with missing mandatory headers.
- Product
- Leafnode
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordleafnode.sourceforge.netsecunia.com
Oct 20, 2003The fetchnews NNTP client in leafnode 1.9.3 to 1.9.41 allows remote attackers to cause a denial of service (process hang and termination) via certain malformed CVE-2003-0744 · Other software · Leafnode · reported by MITREMedium 5
The fetchnews NNTP client in leafnode 1.9.3 to 1.9.41 allows remote attackers to cause a denial of service (process hang and termination) via certain malformed Usenet news articles that cause fetchnews to hang while waiting for input.
- Product
- Leafnode
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comleafnode.sourceforge.net
Dec 31, 2002The leafnode server in leafnode 1.9.20 to 1.9.29 allows remote attackers to cause a denial of service (infinite loop) when leafnode requests a cross-posted artiCVE-2002-1661 · Other software · Leafnode · reported by MITREMedium 5
The leafnode server in leafnode 1.9.20 to 1.9.29 allows remote attackers to cause a denial of service (infinite loop) when leafnode requests a cross-posted article to one group whose name is a prefix of another group.
- Product
- Leafnode
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordleafnode.sourceforge.netmarc.info
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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