Recent Advisories

Severity ID Title Vendor Product Date Type
NONE H1:3516974

curl: SSL options ISSUERCERT, EC_CURVES and CRLFILE silently ignored by non-OpenSSL backends_H1:3516974

## Summary: The SSL options ISSUERCERT, EC_CURVES and CRLFILE are silently ignored for e.g. the mbedTLS backend, which allows MITM attacks for the ...

N/A N/A HACKERONE
NONE H1:3516186

curl: Cookie Max-Age Integer Overflow Vulnerability_H1:3516186

## Summary: The cookie parsing code in `lib/cookie.c` contains an integer overflow vulnerability when processing the `Max-Age` attribute of HTTP co...

N/A N/A HACKERONE
NONE H1:3516202

curl: Cookie Replacement Use-After-Free Vulnerability_H1:3516202

## Summary: The cookie replacement logic in `lib/cookie.c` contains a use-after-free vulnerability in the `replace_existing()` function. The functi...

N/A N/A HACKERONE
MEDIUM 5.7 H1:3514263

curl: libcurl: Improper Authentication State Management on Cross-Protocol Redirects_H1:3514263

Following the recent advisory for **CVE-2025-14524**, I conducted an investigation into how libcurl manages OAuth2 credentials during complex redir...

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NONE H1:3509396

curl: IMAP Protocol Desynchronization and Response Smuggling via Naive Literal Parsing_H1:3509396

`libcurl` incorrectly parses IMAP literals (`{size}`) even when they are embedded within quoted strings (e.g., email subjects or headers). This beh...

N/A N/A HACKERONE
NONE H1:3508785

curl: Gopher Protocol Command Injection (SSRF Smuggling)_H1:3508785

## Summary The `curl` Gopher protocol handler is vulnerable to command injection through URL-encoded CRLF sequences in the path. This allows an att...

N/A N/A HACKERONE
NONE H1:3508799

curl: Digest Authentication Header Injection_H1:3508799

## Summary The Digest authentication implementation in `libcurl` fails to properly escape the `uri` parameter in the `Authorization` header. While ...

N/A N/A HACKERONE
NONE H1:3509437

curl: Directory listing vulnerability is disclosing names and emails, widespread (thousands of records, publicly accessible without auth)_H1:3509437

## Summary: [directory listing vulnerability is disclosing names and emails and so many other sensitive information, that significantly increases t...

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NONE H1:3508701

curl: Use-After-Free in curl_easy_nextheader when reusing header handle across requests_H1:3508701

). The API returns struct curl_header objects that internally reference libcurl-owned linked list nodes. When a new request is performed on the sam...

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NONE H1:3508854

curl: MQTT: unsigned integer underflow bypasses MAX_MQTT_MESSAGE_SIZE check_H1:3508854

## Summary An unsigned integer underflow exists in libcurl's MQTT publish path. Due to incorrect arithmetic ordering in the size validation logic, ...

N/A N/A HACKERONE