python-multipart: Quadratic-time querystring parsing with semicolon separators causes CPU denial of service

SummaryWhen parsing application/x-www-form-urlencoded bodies, QuerystringParser located the field separator with a two step lookup: it first scanned the entire remaining buffer for &, and only when no & existed anywhere ahead did it fall back to scanning for ;. For a body that uses ; as the...

genai-4-dps-helper (0.2.31), news-scraper-pdf (1.1.6) +6 more potentially affected by CVE-2026-49460 via pypdf (5.3.0)

pypdf PYPI version 5.3.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - genai-4-dps-helper 0.2.31 - news-scraper-pdf 1.1.6 - polytext =0.1.0, =0.1.0, =0.1.10 - python-pdf-toolkit 0.1.1 - synforge 0.1.0 - ta-using-llms 0.0....

cewler (1.2.0.post1), python-xdoc (>=0.1.0, <=0.1.1) potentially affected by CVE-2026-49460 via pypdf (4.0.1)

pypdf PYPI version 4.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - cewler 1.2.0.post1 - python-xdoc =0.1.0, =0.1.1 Source cves: CVE-2026-49460 Source advisory: OSV:PYSEC-2026-3010...

10xscale-agentflow-cli (0.1.5), 360solutions-bc-mcp (>=0.5.3, <=0.5.6) +1004 more potentially affected by CVE-2026-53540 via python-multipart (>=0.0.5, <=0.0.30)

python-multipart PYPI version =0.0.5, =0.5.3, =0.1.0, =0.2.1, =0.2.0, =0.5.1.dev0, =3.2.0, =1.5.2, =0.1.1, =0.1.4b1, =1.0.0, =1.5.5 - agbenchmark 0.0.10 and more Source cves: CVE-2026-53540 Source advisory: OSV:PYSEC-2026-3040...

10xscale-agentflow-cli (0.1.5), 360solutions-bc-mcp (>=0.5.3, <=0.5.6) +1004 more potentially affected by CVE-2026-53537 via python-multipart (>=0.0.5, <=0.0.29)

python-multipart PYPI version =0.0.5, =0.5.3, =0.1.0, =0.2.1, =0.2.0, =0.5.1.dev0, =3.2.0, =1.5.2, =0.1.1, =0.1.4b1, =1.0.0, =1.5.5 - agbenchmark 0.0.10 and more Source cves: CVE-2026-53537 Source advisory: OSV:PYSEC-2026-3041...

10xscale-agentflow-cli (0.1.5), 360solutions-bc-mcp (>=0.5.3, <=0.5.6) +1004 more potentially affected by CVE-2026-53538 via python-multipart (>=0.0.5, <=0.0.29)

python-multipart PYPI version =0.0.5, =0.5.3, =0.1.0, =0.2.1, =0.2.0, =0.5.1.dev0, =3.2.0, =1.5.2, =0.1.1, =0.1.4b1, =1.0.0, =1.5.5 - agbenchmark 0.0.10 and more Source cves: CVE-2026-53538 Source advisory: OSV:PYSEC-2026-3037...

10xscale-agentflow-cli (0.1.5), 360solutions-bc-mcp (>=0.5.3, <=0.5.6) +1004 more potentially affected by CVE-2026-53539 via python-multipart (>=0.0.5, <=0.0.29)

python-multipart PYPI version =0.0.5, =0.5.3, =0.1.0, =0.2.1, =0.2.0, =0.5.1.dev0, =3.2.0, =1.5.2, =0.1.1, =0.1.4b1, =1.0.0, =1.5.5 - agbenchmark 0.0.10 and more Source cves: CVE-2026-53539 Source advisory: OSV:PYSEC-2026-3036...

cewler (1.2.0.post1), python-xdoc (>=0.1.0, <=0.1.1) potentially affected by CVE-2026-48156 via pypdf (4.0.1)

pypdf PYPI version 4.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - cewler 1.2.0.post1 - python-xdoc =0.1.0, =0.1.1 Source cves: CVE-2026-48156 Source advisory: OSV:PYSEC-2026-3004...

cewler (1.2.0.post1), python-xdoc (>=0.1.0, <=0.1.1) potentially affected by CVE-2026-48155 via pypdf (4.0.1)

pypdf PYPI version 4.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - cewler 1.2.0.post1 - python-xdoc =0.1.0, =0.1.1 Source cves: CVE-2026-48155 Source advisory: OSV:PYSEC-2026-3016...

genai-4-dps-helper (0.2.31), news-scraper-pdf (1.1.6) +6 more potentially affected by CVE-2026-48155 via pypdf (5.3.0)

pypdf PYPI version 5.3.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - genai-4-dps-helper 0.2.31 - news-scraper-pdf 1.1.6 - polytext =0.1.0, =0.1.0, =0.1.10 - python-pdf-toolkit 0.1.1 - synforge 0.1.0 - ta-using-llms 0.0....

PYSEC-2026-2862 PDM: Project-Local State and Config Writes Follow Symlinks

Summary PDM writes several project-local state or configuration files without symlink protection. If a malicious repository places those files as symlinks, local PDM operations can overwrite the symlink targets. This creates an arbitrary file clobber primitive relative to the privileges of the...

PYSEC-2026-3435 python-zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood

Impact AsyncListener.handlequeryordefer retained every truncated TC-bit incoming query in self.deferredaddr and armed a per-addr timer in self.timersaddr that flushed the reassembled query within 500 ms RFC 6762 §18.5. Neither the per-addr list nor the number of distinct addr keys was capped, and...

PYSEC-2026-2971 rattler has an entry-point path traversal in noarch:python install (arbitrary file write)

Summary EntryPoint::FromStr in rattlercondatypes performs only .trim on the command field before the linker joins it onto the install prefix and writes an executable Python script. A malicious noarch:python package can ship an info/link.json with an entry-point name containing .., /, , or an...

rattler has an entry-point path traversal in noarch:python install (arbitrary file write)

SummaryEntryPoint::FromStr in rattlercondatypes performs only .trim on the command field before the linker joins it onto the install prefix and writes an executable Python script. A malicious noarch:python package can ship an info/link.json with an entry-point name containing .., /, \, or an...

PraisonAI has an Arbitrary File Write in Python API

Bug Report: Arbitrary File Write in Python API SummaryHidden metadata in a webpage causes PraisonAI agents to write attacker-controlled content to arbitrary paths. writefile skips path validation when workspace=None always None in production. AffectedPraisonAI = 4.6.37 pip install praisonai Root...

PYSEC-2026-2916 PraisonAI has an Arbitrary File Write in Python API

Bug Report: Arbitrary File Write in Python API Summary Hidden metadata in a webpage causes PraisonAI agents to write attacker-controlled content to arbitrary paths. writefile skips path validation when workspace=None always None in production. Affected PraisonAI outputfile: /tmp/flag.txt...

PYSEC-2026-3060 Amazon SageMaker Python SDK is missing integrity verification in its Triton inference handler

Summary Amazon SageMaker Python SDK is an open-source library for training and deploying machine learning models on Amazon SageMaker. An issue exists where, under certain circumstances, the Triton inference handler deserializes model artifacts without performing integrity verification, allowing...

PYSEC-2026-2430 Crawlee for Python: SSRF via sitemap-derived URLs

Overview - Vulnerability type: Blind SSRF - Affected components: src/crawlee/utils/sitemap.py, src/crawlee/utils/robots.py, src/crawlee/requestloaders/sitemaprequestloader.py, and all built-in HTTP clients. - Trigger: an attacker-controlled sitemap or robots.txt containing a URL that points to an...

Amazon SageMaker Python SDK is missing integrity verification in its Triton inference handler

SummaryAmazon SageMaker Python SDK is an open-source library for training and deploying machine learning models on Amazon SageMaker. An issue exists where, under certain circumstances, the Triton inference handler deserializes model artifacts without performing integrity verification, allowing...

dag-factory (0.23.0a3), dataflow-airflow (>=2.10.5, <=2.10.10) +3 more potentially affected by CVE-2026-27173 via apache-airflow-providers-cncf-kubernetes (>=10.4.2rc1, <=10.10.0)

apache-airflow-providers-cncf-kubernetes PYPI version =10.4.2rc1, =2.10.5, =0.4.3, =0.0.1rc1, =2.10.7rc1, =2.10.11rc5 Source cves: CVE-2026-27173 Source advisory: OSV:PYSEC-2026-2365...