curl: CVE-2026-3784: wrong proxy connection reuse with credentials

Summary libcurl may reuse an existing HTTP proxy CONNECT tunnel without matching proxy credentials when selecting a reusable connection. In lib/url.c, urlmatchproxyuse calls proxyinfomatches lib/url.c:930-935 → lib/url.c:589-595, and that matcher compares proxy type, host, and port but does not...

curl: In curl's SASL OAUTHBEARER authentication, including the SOH character (0x01) in the username corrupts the message structure.

Summary: This vulnerability arises because curl fails to validate the contents of the username when constructing OAuth2 authentication messages. Depending on the server-side implementation, this could lead to log tampering or credential spoofing. Affected version curl 8.18.0...

Integer Overflow Bypasses Memory Safety Checks in H5 Dataset Loading

This report is not public...

curl: LM Challenge-Response Hash Always Sent in SMB Authentication

LM Challenge-Response Hash Always Sent in SMB Authentication Summary The curl SMB client unconditionally computes and sends both the legacy LAN Manager LM and NT challenge-response hashes during SMB session setup. The LM hash is cryptographically broken — it splits the password into two 7-charact...

curl: SSTI leads to Command injection

Summary: Hi ,team i 'am new reasercher search for pleasure excuse me for poor technical details. the parmeter os is vulnerable to SSTI leads to command injection Affected version curl/7.55.1 Steps To Reproduce: i tried to injected the os parmeter curl -ospopen'sleep 10'.read --url...

curl: CVE-2026-3783: token leak with redirect and netrc

Summary When --oauth2-bearer is used with --netrc and curl follows a redirect, the bearer token leaks to the redirect target. The netrc bypass at http.c:822 skips Curlauthallowedtohost, allowing the token through. This is an incomplete fix for CVE-2025-14524 — the Dec 2025 SASL fix patched...

Node.js: HTTP Response Queue Poisoning via TOCTOU Race Condition in `http.Agent`

Vulnerability description not provided...

Basecamp: Stored XSS on Trix Editor version latest (2.1.16) - Sanitizer Bypass

A vulnerability was discovered in Trix Editor version 2.1.16 that allowed for a Stored Cross-Site Scripting XSS attack. The vulnerability arose from an unsafe interaction between Trix's custom DOMPurify configuration and its document serialization logic. The issue was caused by Trix's use of the...

Lovable VDP: Open Redirect on lovable.dev via redirect parameter leads to phishing attacks

An open redirect vulnerability was discovered on the website lovable.dev. After logging in, a request was sent to a URL with a 'redirect' parameter. By supplying a backslash-prefixed value for the 'redirect' parameter, the user could be redirected to an external domain. This vulnerability could...

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...