PYSEC-2026-3436 zeroconf has unbounded recursion in DNS compression-pointer decoder that allows LAN-local denial of service

Impact DNSIncoming.decodelabelsatoffset recurses once per DNS-name compression pointer RFC 1035 §4.1.4. Pointer cycles and label counts were capped, but the chain length of unique forward pointers was not. A single 3 kB mDNS packet carrying 1500 chained pointers drives the recursion past CPython'...

PYSEC-2026-3437 zeroconf: Unbounded exception-dedup state retains packet buffers via traceback frame locals, enabling LAN-local memory exhaustion

Impact DNSIncoming.logexceptiondebug and the four QuietLogger exception-dedup methods stored an unbounded seenlogs dict keyed by strsys.excinfo1. The seven IncomingDecodeError messages raised from readname / decodelabelsatoffset RFC 6762 §18 name-decoding error paths all embed self.source — the...

zeroconf: Unbounded exception-dedup state retains packet buffers via traceback frame locals, enabling LAN-local memory exhaustion

ImpactDNSIncoming.logexceptiondebug and the four QuietLogger exception-dedup methods stored an unbounded seenlogs dict keyed by strsys.excinfo1. The seven IncomingDecodeError messages raised from readname / decodelabelsatoffset RFC 6762 §18 name-decoding error paths all embed self.source — the...

PYSEC-2026-2655 MLFlow Creates a Temporary File With Insecure Permissions

In mlflow/mlflow versions prior to 3.11.0, the getorcreatenfstmpdir function in mlflow/utils/fileutils.py creates temporary directories with world-writable permissions 0o777, and the createmodeldownloadingtmpdir function in mlflow/pyfunc/init.py creates directories with group-writable permissions...

PYSEC-2026-2698 Open WebUI: Jupyter code execution works despite `ENABLE_CODE_EXECUTION=false` — feature gate bypassed

Summary The /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLECODEEXECUTION=false. The feature gate is not enforced on the API endpoint — the configuration says "disabled" but code still executes. Details The...

PYSEC-2026-2420 CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion

The cloakserve CDP multiplexer uses the user-supplied fingerprint query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted fingerprint value containing path traversal...

PYSEC-2026-3396 utcp-http vulnerable to SSRF via attacker-controlled OpenAPI servers[0].url in HTTP communication protocol

Summary The utcp-http plugin is vulnerable to a blind Server-Side Request Forgery SSRF caused by a trust-boundary inconsistency between manual discovery and tool invocation. registermanual validates the discovery URL against an HTTPS / loopback allowlist, but calltool and calltoolstreaming reuse...

PYSEC-2026-2557 Langchain-Chatchat Uses Insufficiently Random Values

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function getfileid of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently rando...

PYSEC-2026-2558 Langchain-Chatchat Uses a Broken or Risky Cryptographic Algorithm

A flaw has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. This issue affects the function PIL.Image.tobytes of the file libs/chatchat-server/chatchat/webuipages/dialogue/dialogue.py of the component Vision Chat Paste Image Handler. This manipulation of the argument...

Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: CVE-2023-53995: net: ipv4: fix one memleak in inetdelifa bsc1255616. CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype bsc1259891. CVE-2026-23451: bonding:...

PYSEC-2026-2951 PraisonAIAgents: SSRF via unvalidated URL in `web_crawl` httpx fallback

| Field | Value | |---|---| | Severity | High | | Type | SSRF -- unvalidated URL in webcrawl httpx fallback allows internal network access | | Affected | src/praisonai-agents/praisonaiagents/tools/webcrawltools.py:133-180 | Summary webcrawl's httpx fallback path passes user-supplied URLs directly...

PYSEC-2026-3414 web3.py: SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

Summary web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these contract-supplied URLs directly after sender / data template substitution without any destination validation...

PYSEC-2026-2507 ha-mcp OAuth 2.1 DCR mode enables network reconnaissance via an error oracle

Summary The ha-mcp OAuth consent form beta feature accepts a user-supplied haurl and makes a server-side HTTP request to haurl/api/config with no URL validation. An unauthenticated attacker can submit arbitrary URLs to perform internal network reconnaissance via an error oracle. Two additional co...

PYSEC-2026-2669 Azure MCP Server has Server-Side Request Forgery issue that allows authorized attacker to elevate privileges over a network

Server-Side Request Forgery SSRF in Azure MCP Server allows an authorized attacker to elevate privileges over a network...

PYSEC-2026-2438 datapizza-ai has unsafe deserialization via pickle.loads() in RedisCache

A vulnerability has been found in datapizza-labs datapizza-ai 0.0.7. Affected by this vulnerability is the function RedisCache of the file datapizza-ai-cache/redis/datapizza/cache/redis/cache.py. Such manipulation leads to deserialization. The attack requires being on the local network. A high...

PYSEC-2026-2627 MCP Run Python Deno Sandbox Misconfiguration Allows SSRF Attacks via Localhost Access

Impact Server-Side Request Forgery SSRF: A security vulnerability exists in the mcp-run-python tool specifically within the Pydantic-AI integration due to an overly permissive Deno sandbox configuration. The tool configures the Deno runtime—which is intended to isolate the execution of untrusted...

PYSEC-2026-2968 Azure PromptFlow remote code execution related to Jinja templates

Improper isolation or compartmentalization in Azure PromptFlow allows an unauthorized attacker to execute code over a network...

CVE-2026-29008

A flaw was found in U-Boot. A network-adjacent attacker can exploit an integer underflow vulnerability in the tcprxstatemachine function by sending a specially crafted TCP SYN+ACK packet. This can cause the bootloader to crash, leading to a Denial of Service DoS and preventing the device from...

CVE-2026-29009

A flaw was found in U-Boot. A buffer overflow vulnerability exists in the nfsreadlinkreply function when the Network File System NFS command is enabled. A malicious or compromised NFS server can exploit this by sending multiple relative symlink targets, exceeding the buffer's capacity. This can...

PYSEC-2026-3442

Authenticated SSRF in Gravitino JobManager allows server-side HTTP requests to internal network and cloud metadata endpoints via unvalidated job template URIs. A vulnerability in Apache Gravitino. This issue affects Apache Gravitino: from 1.0.0 through 1.2.1. Users are recommended to upgrade to...