Ruby on Rails: ActiveStorage Disk Service Path Traversal via Custom Blob Key Injection

A vulnerability was discovered in the ActiveStorage Disk Service component of Ruby on Rails. The vulnerability allowed an attacker to achieve arbitrary file write, read, and delete on the server's filesystem by injecting a malicious blob key. The vulnerability was due to insufficient validation o...

curl: Use after free in hyperfifo example

Summary: THIS ONLY IS AN ISSUE IN EXAMPLE CODE, NOT CURL ITSELF! In the hyperfifo example the event base is freed before the curlmulticleanup is called. This leads to a use after free in the addsocket callback, when libevent tries to lock a mutex in the base event during the curl shutdown. Link t...

IBM: SQL Injection vulnerability found on ibm.com endpoint

A SQL injection vulnerability was found on an ibm.com endpoint. The vulnerability was reported to IBM, analyzed, and remediated...

HackerOne: `exportReportPdf` mutation shows internal Activity

A vulnerability was identified in the PDF export path for disclosed reports. When a report was exported to PDF, the export pipeline did not apply the same visibility and authorization scoping that governs the normal report view. The root cause was that PDF generation assembled report content from...

NLTK Downloader: Arbitrary File Write / Remote Code Execution via XML Attribute Injection in Package Index

Summary Field| Value ---|--- Component| nltk.downloader.Package Affected Version| NLTK element in the remote XML index contains a filename="..." attribute, it flows into kw and overwrites the safe value. The overridden filename is used directly at line 679 as the filesystem write destination:...

CWE-346: CORS Origin Validation Bypass via `re.match()` in `allow_origin_pat`

This report is not public...

curl: Curl Telnet Handler Buffer Overflow

Summary: I found a buffer overflow in curl's telnet protocol handler that allows remote memory corruption without authentication. The bug is in the CURLSBACCUM macro in lib/telnet.c line 69, where the bounds check lets you write one byte past the end of a 512-byte buffer. When curl receives 512+...

`trust_remote_code=False` Bypass in LightGlue Nested Config Resolution (Transformers 5.2.0) Leading to Remote Code Execution During Normal `from_pretrained()` Loading

Description Transformers contains a trust-boundary flaw in the LightGlue loading path. When loading a LightGlue model, LightGlueConfig reads trustremotecode from untrusted model config.json and reuses it for nested AutoConfig.frompretrained... resolution. This allows an attacker-controlled model...

curl: RTSP RTP Interleaved Parser Assertion Failure (Zero-Length RTP Payload)

Summary: I am submitting this as a security issue primarily due to how it was discovered and that it's my first Curl submission, but I suspect I might be overly cautious here. This issue was discovered as part of the AIXCC competition, and I am assisting on reporting true positive findings to...

curl: Integer Overflow in curl_multi_get_handles() Leading to Heap Buffer Overflow

Integer Overflow in curlmultigethandles Leading to Heap Buffer Overflow Summary The curlmultigethandles function in lib/multi.c contains an integer overflow vulnerability when the number of easy handles in a multi handle approaches UINTMAX 4,294,967,295. When count == UINTMAX, the expression coun...

curl: Able to bypass HSTS using trailing dot

Summary: curl allows users to load a HSTS cache which will cause curl to use HTTPS instead of HTTP given a HTTP URL for a given site specified in the HSTS cache. Affected version curl version used for reproducing this issue is: 8.16.0 curl --version curl 8.16.0 Windows libcurl/8.16.0 Schannel...

Incomplete Fix for CVE-2026-1669: HDF5 External Storage File Disclosure in Legacy H5 Loading

Description Keras 3 patched CVE-2026-1669 HDF5 External Storage File Disclosure in the new .keras and .weights.h5 loading paths by adding verifydataset to check for dataset.external in H5IOStore. However, the legacy .h5 loading path keras/src/legacy/saving/legacyh5format.py was not patched. This...

Path Traversal via Incorrect startswith() Root Directory Check in jupyter-server Allows Access to Sibling Directories

This report is not public...

Nextcloud: Group restriction bypass via bearer token in user_oidc (SETTING_RESTRICT_LOGIN_TO_GROUPS not enforced in Backend::getCurrentUserId)

A security inconsistency was identified in the useroidc app where group-based login restrictions were enforced in the browser OIDC flow but not in bearer token validation. This could have allowed users outside whitelisted groups to access the Nextcloud API with a valid bearer token...

Authentication Bypass via endswith() Health Check Exemption Allows Unauthenticated Access to Variables/Secrets in prefecthq/prefect

Description When PREFECTSERVERAPIAUTHSTRING is configured, Prefect Server's authentication middleware exempts any URL path ending with "health" or "ready" to allow health check probes. However, multiple API endpoints accept user-controlled string names as URL path parameters e.g.,...

Path Traversal via Prefix Match Bypass in `_get_os_path`

This report is not public...

Gateway API Authorization Bypass: Any Authenticated User Can Enumerate Secrets, Endpoints, and Model Definitions

This report is not public...

Arbitrary Remote Code Execution via `_attn_implementation_internal` Config Injection in transformers (No `trust_remote_code` Required)

Description A critical remote code execution vulnerability exists in the HuggingFace transformers library. An attacker can craft a malicious config.json containing the field attnimplementationinternal set to an attacker-controlled HuggingFace Hub repository ID. When a victim loads this model usin...

Git Argument Injection via Reference Field in GitHubRepository Block

This report is not public...

Arbitrary File Write via Path Traversal in Orbax Checkpoint Asset Dict Keys

Description When loading a Keras model from an Orbax checkpoint directory, the writenesteddicttodir function uses dict keys from the checkpoint's asset data directly in os.path.join without any path sanitization. A crafted Orbax checkpoint can include absolute paths or path traversal sequences .....