CVE-2026-78587 Incorrect Authorization in Fleet Server Leading to Denial of Service of Agent Upload Operations

Incorrect Authorization CWE-863 in Fleet Server can lead to a denial of service of agent upload operations via Privilege Abuse CAPEC-122. Fleet Server does not correctly verify session ownership during multi-part data upload operations, allowing any authenticated agent to interfere with the activ...

CVE-2026-78586 Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service

Allocation of Resources Without Limits or Throttling CWE-770 in Kibana can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user with low-level privileges could submit a specially crafted request that causes Kibana to consume an unbounded amount of memory, renderin...

CVE-2026-78586 Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service

Allocation of Resources Without Limits or Throttling CWE-770 in Kibana can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user with low-level privileges could submit a specially crafted request that causes Kibana to consume an unbounded amount of memory, renderin...

EUVD-2026-70064

Allocation of Resources Without Limits or Throttling CWE-770 in Kibana can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user with low-level privileges could submit a specially crafted request that causes Kibana to consume an unbounded amount of memory, renderin...

CVE-2026-78586

Kibana (Elastic) is vulnerable to unbounded memory allocation (CWE-770) that can cause a denial of service. An authenticated user with low-level privileges can submit a specially crafted request causing Kibana to consume unbounded memory, rendering it unavailable to all users. Affected versions: ...

CVE-2026-78594 Improper Handling of Highly Compressed Data in APM Server Leading to Persistent Denial of Service

Improper Handling of Highly Compressed Data CWE-409 in APM Server can lead to a persistent denial of service via Excessive Allocation CAPEC-130. An authenticated user with write access to source map content could store specially crafted, highly compressed content that exhausts the memory availabl...

EUVD-2026-70058

Improper Handling of Highly Compressed Data CWE-409 in APM Server can lead to a persistent denial of service via Excessive Allocation CAPEC-130. An authenticated user with write access to source map content could store specially crafted, highly compressed content that exhausts the memory availabl...

GHSA-MPF4-983Q-P7J4 Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop

Summary Tornado parses application/x-www-form-urlencoded bodies with urllib.parse.parseqs and does not pass maxnumfields. A body made almost entirely of separators produces tens of millions of fields, and the parse happens on the event loop before the handler runs, so a single request stalls the...

Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop

Summary Tornado parses application/x-www-form-urlencoded bodies with urllib.parse.parseqs and does not pass maxnumfields. A body made almost entirely of separators produces tens of millions of fields, and the parse happens on the event loop before the handler runs, so a single request stalls the...

EUVD-2026-68892

Tornado: Urlencoded body parsing omits maxnumfields, so one request can stall the event loop...

EUVD-2026-68894

pypdf: Inefficient handling of non-whitespace inputs in readuntilwhitespace...

EUVD-2026-67072

NLTK: Quadratic-time DoS in PorterStemmer via long runs of 'y'...

CVE-2026-83619

A flaw was found in xmldom, a JavaScript module used for processing XML documents. A remote attacker could exploit a vulnerability in the XML parser by submitting a specially crafted XML input. This could lead to a Denial of Service DoS, causing the affected system to become unresponsive by...

EUVD-2026-67073

NLTK: Quadratic CPU Exhaustion in XMLCorpusView.readxmlfragment...

GHSA-VP2X-QP44-57V7 NLTK: Quadratic CPU Exhaustion in `XMLCorpusView._read_xml_fragment()`

Summary XMLCorpusView.readxmlfragment reads a corpus file in 1 KiB blocks, appending each block to a growing fragment string, then calls VALIDXMLRE.matchfragment on the full accumulated buffer every iteration. Because each iteration rescans the entire accumulated fragment, the total amount of wor...

GHSA-FF5C-CP5C-9WJF NLTK: Uncontrolled resource consumption in RecursiveDescentParser via ambiguous or left-recursive grammars

nltk.parse.RecursiveDescentParser and SteppingRecursiveDescentParser enumerate parses top-down with no bound on the number of recursive steps. A small, crafted context-free grammar makes a short input consume unbounded CPU and/or exhaust the Python recursion stack, pinning a process indefinitely ...

NLTK: Uncontrolled resource consumption in RecursiveDescentParser via ambiguous or left-recursive grammars

nltk.parse.RecursiveDescentParser and SteppingRecursiveDescentParser enumerate parses top-down with no bound on the number of recursive steps. A small, crafted context-free grammar makes a short input consume unbounded CPU and/or exhaust the Python recursion stack, pinning a process indefinitely ...

EUVD-2026-67074

NLTK: Uncontrolled recursion in nltk.featstruct.FeatStructReader causes unhandled RecursionError DoS via deeply nested feature-structure input...

NLTK: Uncontrolled recursion in nltk.featstruct.FeatStructReader causes unhandled RecursionError (DoS) via deeply nested feature-structure input

Summary nltk.featstruct.FeatStructReader used by FeatStructstr and by FeatureGrammar.fromstring parses feature-structure strings such as a=1 with a recursive-descent parser that has no nesting-depth limit. A small, trivially-crafted input 700 bytes with deeply nested brackets drives the parser pa...

GHSA-CW6X-M8JW-QMRH NLTK: Uncontrolled recursion in nltk.featstruct.FeatStructReader causes unhandled RecursionError (DoS) via deeply nested feature-structure input

Summary nltk.featstruct.FeatStructReader used by FeatStructstr and by FeatureGrammar.fromstring parses feature-structure strings such as a=1 with a recursive-descent parser that has no nesting-depth limit. A small, trivially-crafted input 700 bytes with deeply nested brackets drives the parser pa...