PyPI vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary
CVE-2026-84366Highscrapy: Scrapy: S3DownloadHandler sends signed S3 requests over plaintext HTTP by defaultCVE-2026-62676Highomnigent: Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.pyCVE-2026-62677Highomnigent: Omnigent: Unvalidated os_env.cwd in agent bundle yields arbitrary host filesystem access on runners without OMNIGENT_RUNNER_WORKSPACECVE-2026-62674Criticalomnigent: Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCECVE-2026-62675Highomnigent: Omnigent: Uploaded Agent Bundle Allows Authenticated Runner RCE via Python Callable ToolsCVE-2026-62388Highnltk: NLTK: Default ENFORCE=False Disables All pathsec Security ControlsCVE-2026-63311Mediumnltk: NLTK: SSRF Fail-Open in validate_network_url() via DNS Resolution FailureCVE-2026-76098Highmistune: Mistune: Denial of Service — RecursionError via Excessive Emphasis Markers in MarkdownCVE-2026-82397Hightornado: Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loopCVE-2026-71492Mediumbanks: Banks: Path traversal in `DirectoryPromptRegistry.set()` allows arbitrary file write outside the registry rootCVE-2026-82398Mediumpypdf: pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespaceCVE-2026-81722Mediumnltk: NLTK: Quadratic-time DoS in PorterStemmer via long runs of 'y'CVE-2026-81727Mediumnltk: NLTK: Downloader.download follows hardlinks and overwrites outside-root filesCVE-2026-81726Highnltk: NLTK: Model-artifact APIs bypass pathsec and touch files outside allowed rootsCVE-2026-81723Mediumnltk: NLTK: Quadratic CPU Exhaustion in `XMLCorpusView._read_xml_fragment()`CVE-2026-12876Mediumnltk: NLTK: Uncontrolled resource consumption in RecursiveDescentParser via ambiguous or left-recursive grammarsCVE-2026-81724Mediumnltk: NLTK: Uncontrolled recursion in nltk.featstruct.FeatStructReader causes unhandled RecursionError (DoS) via deeply nested feature-structure…CVE-2026-32773Mediumpyspark: Apache Spark History Server allows stored cross-site scripting through unescaped application namesCVE-2026-84310Mediumpypdf: pypdf: Possible long runtimes/large memory usage when retrieving outlinesCVE-2026-84311Mediumpypdf: pypdf: Possible long runtimes/large memory usage when extracting XForm objectsCVE-2026-84309Mediumpypdf: pypdf: Possible infinite loop for TreeObject.insert_childCVE-2026-84305Mediumsqlparse: sqlparse: Reindentation of tuple lists causes near-cap quadratic CPU consumptionCVE-2026-79675Criticalnltk: NLTK: JVM argument injection bypass via per-call options in the NLTK Stanford wrappers (incomplete fix of CVE-2026-12841)CVE-2026-78680Highnltk: NLTK: Uncontrolled search path when invoking the Graphviz 'dot' binaryGHSA-8423-8FGW-73VQMediumtornado: tornado: multipart split() creates huge temp list before max_parts check -> memory amplification DoS (httputil.py:34)

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