Transformers save_pretrained path traversal allows arbitrary file writes through chat template names

A vulnerability in huggingface/transformers versions 5.10.0 allows an attacker to perform arbitrary file writes via path traversal. The issue resides in the savepretrained methods of PreTrainedTokenizerBase and ProcessorMixin, where keys from the chattemplate dictionary are used directly as...

langgraph-api: Incomplete assistant authorization in LangGraph Server run creation

SummaryIn affected versions of langgraph-api the LangGraph Server runtime, the run-creation path authorized the assistant attached to a run using a different authorization event than the rest of the assistant-handling code paths. Direct assistant reads and cron creation dispatch the assistants.re...

PYSEC-2026-3818 Copier has a trust-prefix bypass via path traversal that runs tasks unprompted

Copier: trust-prefix bypass via path traversal runs tasks unprompted Summary In copier = 9.5.0, = 9.15.1, the trust setting's prefix match copier/settings.py compares the template URL against a trusted prefix with a raw str.startswith and no path normalization, while the URL is normalized when th...

PYSEC-2026-3838 GitPython: Unguarded git read-tree option forwarding in IndexFile.from_tree/reset/merge_tree enables arbitrary file overwrite

Summary IndexFile.fromtree, IndexFile.reset → fromtree and IndexFile.mergetree append caller-influenced treeish strings positionally to git read-tree with no unsafe-option guard, no allowunsafeoptions parameter, and no -- separator. git read-tree --index-output= writes the resulting index to an...

PYSEC-2026-3920 Snowflake Connector for Python improperly verifies TLS hostnames

Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this b...

PYSEC-2026-3881 OpenHarness remote resume commands expose other users' saved session snapshots

OpenHarness ohmo gateway /resume and /summary slash commands default remoteinvocable to True, allowing admitted remote senders to enumerate and load arbitrary session snapshots by ID. Attackers can exploit this to access victim snapshots containing private prompts, credentials, tool output, and...

GitPython: Command Injection via git long-option prefix abbreviation bypass of CVE-2026-42215 blocklist

Command injection via long-option prefix abbreviation bypassing checkunsafeoptions incomplete fix of CVE-2026-42215 / GHSA-rpm5-65cw-6hj4Component: gitpython-developers/GitPython PyPI: GitPythonAffected: all versions carrying the 3.1.47 blocklist fix, through current main verified at commit...

Snowflake Connector for Python improperly verifies TLS hostnames

Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this b...

PYSEC-2026-3842 GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL

Summary Repo.clonefrom passes the caller-supplied remote URL through Git.polishurl, which on every non-Cygwin platform calls os.path.expandvars on the URL before handing it to git clone. An attacker who controls the URL argument — the documented use case for clonefrom in "import repository from...

OpenHarness remote resume commands expose other users' saved session snapshots

OpenHarness ohmo gateway /resume and /summary slash commands default remoteinvocable to True, allowing admitted remote senders to enumerate and load arbitrary session snapshots by ID. Attackers can exploit this to access victim snapshots containing private prompts, credentials, tool output, and...

GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL

SummaryRepo.clonefrom passes the caller-supplied remote URL through Git.polishurl, which on every non-Cygwin platform calls os.path.expandvars on the URL before handing it to git clone. An attacker who controls the URL argument — the documented use case for clonefrom in "import repository from UR...

GitPython: command injection via unguarded Git options in `Repo.archive()`, `git.ls_remote()`, and arbitrary file overwrite via `Repo.iter_commits()` / `Repo.blame()`

SummaryGitPython already know that --upload-pack / --exec are command-exec vectors, they are denylist ingit/remote.py:535 and check by Git.checkunsafeoptions git/cmd.py:963, the thing is thischeck him he is only call from fetch, pull, push and clonefrom, everything else who build a gitargv from...

Snowflake SQLAlchemy affected by SQL injection and local file disclosure vulnerabilities

Snowflake SQLAlchemy versions prior to 1.11.0 contain several security vulnerabilities, including: Improper handling of user-supplied column identifiers in merge operations could allow SQL injection through attacker-controlled input keys. An attacker may be able to exploit this through request...

PYSEC-2026-3839 GitPython: command injection via unguarded Git options in `Repo.archive()`, `git.ls_remote()`, and arbitrary file overwrite via `Repo.iter_commits()` / `Repo.blame()`

Summary GitPython already know that --upload-pack / --exec are command-exec vectors, they are denylist in git/remote.py:535 and check by Git.checkunsafeoptions git/cmd.py:963, the thing is this check him he is only call from fetch, pull, push and clonefrom, everything else who build a git argv fr...

PYSEC-2026-3836 GitPython: Command Injection via git long-option prefix abbreviation bypass of CVE-2026-42215 blocklist

Command injection via long-option prefix abbreviation bypassing checkunsafeoptions incomplete fix of CVE-2026-42215 / GHSA-rpm5-65cw-6hj4 Component: gitpython-developers/GitPython PyPI: GitPython Affected: all versions carrying the 3.1.47 blocklist fix, through current main verified at commit...

PYSEC-2026-3921 Snowflake SQLAlchemy affected by SQL injection and local file disclosure vulnerabilities

Snowflake SQLAlchemy versions prior to 1.11.0 contain several security vulnerabilities, including: Improper handling of user-supplied column identifiers in merge operations could allow SQL injection through attacker-controlled input keys. An attacker may be able to exploit this through request...

ONNX: TOCTOU arbitrary file read/write in save_external_dat

SummaryThe saveexternaldata method seems to include multiple issues introducing a local TOCTOU vulnerability, an arbitrary file read/write on any system. It potentially includes a path validation bypass on Windows systems.Regarding the TOCTOU, an attacker seems to be able to overwrite victim's...

PYSEC-2026-3876 ONNX: TOCTOU arbitrary file read/write in save_external_dat

Summary The saveexternaldata method seems to include multiple issues introducing a local TOCTOU vulnerability, an arbitrary file read/write on any system. It potentially includes a path validation bypass on Windows systems. Regarding the TOCTOU, an attacker seems to be able to overwrite victim's...

ChromaDB has a code injection vulnerability

A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated attacker to run arbitrary code on the server by sending a malicious model repository and trustremotecode set to true in...

PYSEC-2026-3814 ChromaDB has a code injection vulnerability

A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated attacker to run arbitrary code on the server by sending a malicious model repository and trustremotecode set to true in...