CVE-2026-87803

An authorization bypass vulnerability exists in the Countly Server DBViewer due to flawed sub-pipeline detection in the aggregation stage sanitizer. The /o/db aggregation endpoint parses user-controlled aggregation JSON and passes it through a stage sanitizer that determines whether a nested arra...

CVE-2026-87803

CVE-2026-87803 is an authorization bypass in Countly Server DBViewer caused by flawed sub-pipeline detection in the aggregation stage sanitizer at the /o/db endpoint. When the sanitizer encounters an unrecognized key such as the undocumented MongoDB-internal $_internalInhibitOptimization, it misc...

PYSEC-2026-3940 weasyprint Has Server-Side Request Forgery (SSRF)

Summary urlfetcher is WeasyPrint's documented mechanism for restricting resource loading - applications use it to block file://, internal hosts, etc. when rendering untrusted input. Two writepdf channels ignore the document's urlfetcher and build a fresh default URLFetcher instead. A restrictive...

PYSEC-2026-3878 Open WebUI: Server-side fetches reach blocked and internal hosts via unvalidated HTTP redirect targets

Summary Open WebUI protects server-side web fetches with two controls: the operator's list of excluded hosts, and a check that refuses private and internal addresses. Neither control was applied to the destination of an HTTP redirect. On a deployment where redirect following is enabled, any...

weasyprint Has Server-Side Request Forgery (SSRF)

Summaryurlfetcher is WeasyPrint's documented mechanism for restricting resource loading - applications use it to block file://, internal hosts, etc. when rendering untrusted input.Two writepdf channels ignore the document's urlfetcher and build a fresh default URLFetcher instead. A restrictive...

PYSEC-2026-3837 GitPython: TagReference.create positional reference bypasses kwargs-only --file guard, enabling arbitrary file read (incomplete fix of 3af0c251)

Summary TagReference.create forwards a caller-influenced positional reference value into git tag without it ever being inspected by the unsafe-option guard, allowing an arbitrary file read the file's contents are returned in-band as the annotated tag message. This is an incomplete-fix bypass of...

vLLM: SSRF + arbitrary local file read in MiMoV2OmniMultiModalProcessor `_fetch_image` and audio loader bypass MediaConnector protections

Summaryvllm/transformersutils/processors/mimov2omni.py — the multimodal processor for MiMoV2OmniForCausalLM — issues requests.get... directly on user-supplied image and audio URL strings and Image.open... on user-supplied local paths, without the SSRF / allowedlocalmediapath checks that...

GitPython: TagReference.create positional reference bypasses kwargs-only --file guard, enabling arbitrary file read (incomplete fix of 3af0c251)

SummaryTagReference.create forwards a caller-influenced positional reference value into git tag without it ever being inspected by the unsafe-option guard, allowing an arbitrary file read the file's contents are returned in-band as the annotated tag message. This is an incomplete-fix bypass of...

PYSEC-2026-3934 vLLM: SSRF + arbitrary local file read in MiMoV2OmniMultiModalProcessor `_fetch_image` and audio loader bypass MediaConnector protections

Summary vllm/transformersutils/processors/mimov2omni.py — the multimodal processor for MiMoV2OmniForCausalLM — issues requests.get... directly on user-supplied image and audio URL strings and Image.open... on user-supplied local paths, without the SSRF / allowedlocalmediapath checks that...

unstructured: Server-Side Request Forgery in the URL-based partitioning

SummaryServer-Side Request Forgery in unstructured. The url= argument of partition, partitionhtml, and partitionmd is fetched via requests.get with no host validation. The response body is returned as Element text, so this is a full-read SSRF — attackers reach loopback admin APIs, internal HTTP...

PYSEC-2026-3827 Django REST framework: Potential bypass of Django `DATA_UPLOAD_MAX_MEMORY_SIZE` when parsing oversized JSON and urlencoded request bodies via DRF `request.data`

Summary While investigating Django REST Framework's request parsing behavior, I identified that DRF's high-level request.data parsing appears to bypass Django's configured DATAUPLOADMAXMEMORYSIZE protection for application/json and application/x-www-form-urlencoded request bodies. In the tested...

PYSEC-2026-3930 unstructured: Server-Side Request Forgery in the URL-based partitioning

Summary Server-Side Request Forgery in unstructured. The url= argument of partition, partitionhtml, and partitionmd is fetched via requests.get with no host validation. The response body is returned as Element text, so this is a full-read SSRF — attackers reach loopback admin APIs, internal HTTP...

PYSEC-2026-3873 Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py

Reporter: Aaron / Aeon — autonomous security agent https://github.com/aaronjmars/aeon Project: omnigent-ai/omnigent v0.1.0 Databricks — meta-harness running Claude Code / Codex / Pi "in check with policies and sandboxing" Component: omnigent/policies/builtins/shell.py shared parser → consumed by...

PYSEC-2026-3810 Banks: Path traversal in `DirectoryPromptRegistry.set()` allows arbitrary file write outside the registry root

Summary DirectoryPromptRegistry.set interpolates the attacker-controllable Prompt.name into a Path expression with no canonicalization. An application that derives the prompt name from request data lets a caller write attacker-controlled bytes outside the configured registry directory. Details...

Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py

Reporter: Aaron / Aeon — autonomous security agent https://github.com/aaronjmars/aeonProject: omnigent-ai/omnigent v0.1.0 Databricks — meta-harness running Claude Code / Codex / Pi "in check with policies and sandboxing"Component: omnigent/policies/builtins/shell.py shared parser → consumed by...

Django REST framework: Potential bypass of Django `DATA_UPLOAD_MAX_MEMORY_SIZE` when parsing oversized JSON and urlencoded request bodies via DRF `request.data`

SummaryWhile investigating Django REST Framework's request parsing behavior, I identified that DRF's high-level request.data parsing appears to bypass Django's configured DATAUPLOADMAXMEMORYSIZE protection for application/json and application/x-www-form-urlencoded request bodies.In the tested...

piccolo-admin has a privilege escalation issue - admin to superuser via session-token disclosure in GET /api/tables/sessions/.

Summarypiccoloadmin uses a helper called superuservalidators to gate access to the user and session tables for non-superusers. The helper rejects PUT, PATCH, DELETE, and POST, but does not reject GET.The sessions table stores live session tokens in plaintext, and the token column is not marked...

PYSEC-2026-3828 Django REST framework: AdminRenderer may disclose GET-protected data when rendering invalid write requests

Summary AdminRenderer may disclose data that would normally be protected by GET permissions when rendering a 400 Bad Request response for an invalid write request. If a view allows POST or another write method but denies GET, an invalid request rendered through AdminRenderer can invoke the view's...

RestrictedPython guard hooks can be shadowed via positional-only arguments

ImpactRestrictedPython rewrites sensitive operations to go through guard hooks. Attribute access becomes getattrobj, name, item access becomes getitemobj, key, writes go through write, and print goes through print. The embedding application supplies these hooks to enforce its policy.Argument-name...

PYSEC-2026-3917 RestrictedPython guard hooks can be shadowed via positional-only arguments

Impact RestrictedPython rewrites sensitive operations to go through guard hooks. Attribute access becomes getattrobj, name, item access becomes getitemobj, key, writes go through write, and print goes through print. The embedding application supplies these hooks to enforce its policy. Argument-na...