pypdf: Possible infinite loop for TreeObject.insert_child

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires a usually writing code path where TreeObject.insertchild is involved. Patches This has been fixed in pypdf==6.16.0. Workarounds If you cannot upgrade yet, consider applying the changes fr...

Infinite loop

Overview pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files Affected versions of this package are vulnerable to Infinite loop in the insertchild method of TreeObject, whose loop can fail to reach its exit condition. An attacker can hang the...

GHSA-JP53-MHQP-8XCG pypdf: Possible infinite loop for TreeObject.insert_child

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires a usually writing code path where TreeObject.insertchild is involved. Patches This has been fixed in pypdf==6.16.0. Workarounds If you cannot upgrade yet, consider applying the changes fr...

DEBIAN-CVE-2026-84309

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

CVE-2026-84309

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

EUVD-2026-69477

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

CVE-2026-84309

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

CVE-2026-84309

pypdf versions prior to 6.16.0 are vulnerable to an infinite loop in TreeObject.insert_child (pypdf/generic/_data_structures.py). An attacker can craft a PDF with a cyclic tree structure that causes the method to follow /Next links indefinitely when a writing code path inserts a child, resulting ...

CVE-2026-84309 pypdf: Possible infinite loop for TreeObject.insert_child

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

CVE-2026-84309 pypdf: Possible infinite loop for TreeObject.insert_child

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

CVE-2026-84309 pypdf: Possible infinite loop for TreeObject.insert_child

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/datastructures.py TreeObject.insertchild to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop...

libssh: libssh: denial of service via zero advertised channel packet size

A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service...

httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server

A flaw was found in the modproxyftp module of the Apache HTTP Server. A remote attacker, by controlling a backend File Transfer Protocol FTP server, can trigger an infinite loop. This vulnerability, categorized as a Loop with Unreachable Exit Condition, leads to a Denial of Service DoS for the...

SUSE CVE-2026-59879

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, Listset, ListsetSize, ListsetIn, ListupdateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 30 to 2 31 in setListBounds in src/List.js, causing an empty List to ente...

Inefficient Algorithmic Complexity

Overview @xmldom/xmldom is a javascript ponyfill to provide the following APIs that are present in modern browsers to other runtimes. Since version 0.7.0 this package is published to npm as @xmldom/xmldom and no longer as xmldom Affected versions of this package are vulnerable to Inefficient...

Browserslist: Uncaught crash / prototype write via untrusted browserslist-stats.json custom stats (normalizeStats)

Vulnerability Details File: node.js Function: normalizeStats line 214, reached from getStat called unconditionally on every browserslist call and loadStat Root Cause js function normalizeStatsdata, stats if !data data = if stats && 'dataByBrowser' in stats stats = stats.dataByBrowser if typeof...

AZL-99336 CVE-2026-83619 affecting package python-tensorboard 2.16.2-6

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.7.0 until 0.8.15, the release-0.8.x parser in lib/sax.js trims captured end-tag names with the unanchored global expression / \t\n\r+$/g. For an end tag containing a long whitespace run...

CVE-2026-83613

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMHandler.startElement in lib/dom-parser.js inserts every parsed attribute through setAttributeNode...

DEBIAN-CVE-2026-83613

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMHandler.startElement in lib/dom-parser.js inserts every parsed attribute through setAttributeNode...

CVE-2026-83606

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.9.0-beta.9 until 0.9.11, the processing-instruction production in lib/grammar.js lets the greedy S+ separator and lazy Char? data group repeatedly repartition a long whitespace tail when...