asteval has a Sandbox Escape via BaseException Subclasses

SummaryAn attacker who can supply expressions to asteval.Interpreter.eval can raise SystemExit,KeyboardInterrupt, GeneratorExit, or BaseException from inside the sandbox. Theseexceptions are subclasses of BaseException but not Exception, so they bypass theexcept Exception: safety net in both run...

PYSEC-2026-3826 django CMS: Structure endpoint bypasses page-view permission

Summary The structure-board endpoint renderobjectstructure renders a page's plugin structure without verifying that the requesting user is allowed to view the page. The edit and preview endpoints enforce this via renderpage, but the structure endpoint does not, allowing a low-privileged staff use...

PYSEC-2026-3807 asteval has a Sandbox Escape via BaseException Subclasses

Summary An attacker who can supply expressions to asteval.Interpreter.eval can raise SystemExit, KeyboardInterrupt, GeneratorExit, or BaseException from inside the sandbox. These exceptions are subclasses of BaseException but not Exception, so they bypass the except Exception: safety net in both...

LangChain MongoDB has NoSQL Operator Injection in MongoDBSaver.list() leading to cross-tenant data exposure

Executive SummaryA NoSQL injection issue exists in the langgraph-checkpoint-mongodb andlanggraph-store-mongodb libraries. MongoDBSaver.list and MongoDBStore.search methodsaccept a filter parameter that is incorporated into MongoDB queries without sufficient validation.Because MongoDB query operat...

LangChain MongoDB has NoSQL Operator Injection in MongoDBSaver.list() leading to cross-tenant data exposure

Executive SummaryA NoSQL injection issue exists in the langgraph-checkpoint-mongodb andlanggraph-store-mongodb libraries. MongoDBSaver.list and MongoDBStore.search methodsaccept a filter parameter that is incorporated into MongoDB queries without sufficient validation.Because MongoDB query operat...

PYSEC-2026-3860 LangChain MongoDB has NoSQL Operator Injection in MongoDBSaver.list() leading to cross-tenant data exposure

Executive Summary A NoSQL injection issue exists in the langgraph-checkpoint-mongodb and langgraph-store-mongodb libraries. MongoDBSaver.list and MongoDBStore.search methods accept a filter parameter that is incorporated into MongoDB queries without sufficient validation. Because MongoDB query...

PYSEC-2026-3859 LangChain MongoDB has NoSQL Operator Injection in MongoDBSaver.list() leading to cross-tenant data exposure

Executive Summary A NoSQL injection issue exists in the langgraph-checkpoint-mongodb and langgraph-store-mongodb libraries. MongoDBSaver.list and MongoDBStore.search methods accept a filter parameter that is incorporated into MongoDB queries without sufficient validation. Because MongoDB query...

Xinference vulnerable to remote code execution via unsafe `eval()` in Llama3 tool-call parsing

SummaryXinference used Python's unsafe eval function when parsing Llama3 tool-call output generated by a large language model. Because the model output can be influenced by attacker-controlled prompts sent to the chat completion API, a remote attacker can craft prompts that cause the model to...

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...

GitPython: Unguarded git option forwarding in Repo.init enables arbitrary command execution via --template clone hooks

SummaryRepo.init forwards kwargs verbatim to git init with no unsafe-option guard and no allowunsafeoptions parameter. git init --template= copies /hooks/ into the new repo's .git/hooks, so an attacker-controlled template kwarg plants a hook that executes on the next git operation → arbitrary cod...

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

SummaryIndexFile.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...

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

Copier: trust-prefix bypass via path traversal runs tasks unprompted SummaryIn copier = 9.5.0,...

PYSEC-2026-3840 GitPython: Unguarded git option forwarding in Repo.init enables arbitrary command execution via --template clone hooks

Summary Repo.init forwards kwargs verbatim to git init with no unsafe-option guard and no allowunsafeoptions parameter. git init --template= copies /hooks/ into the new repo's .git/hooks, so an attacker-controlled template kwarg plants a hook that executes on the next git operation → arbitrary co...

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-2026-3836 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...

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...

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...

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...

Uncontrolled recursion DoS in JustHTML() via deeply nested HTML

Summaryjusthtml through 1.9.1 allows denial of service via deeply nested HTML. During parsing, JustHTML.init always reaches TreeBuilder.finish, which unconditionally calls populateselectedcontent. That function recursively traverses the DOM via findelements / findelement without a depth bound,...

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...