curl: HTTP/2 and HTTP/3 Header Injection in curl

================================================================================ VULNERABILITY REPORT: HTTP/2 and HTTP/3 Header Injection in curl ================================================================================ VULNERABILITY TYPE: Response Header Injection / HTTP Response Splittin...

Alibaba Cloud Linux 3 : 0199: curl (ALINUX3-SA-2025:0199)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2025:0199 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2025-9086: 1. A cookie is set using the secure...

curl: Proxy-Authorization header is leaked to origin server after redirect from proxied to direct connection

Summary curl leaks the Proxy-Authorization header to the origin server after following an HTTP redirect that transitions from a proxied connection to a direct connection e.g. when using --noproxy or when proxy is bypassed after redirect. This causes proxy credentials which are hop-by-hop to be se...

curl: Telnet Suboption Buffer Pointer Underflow in lib/telnet.c leads to Out-of-Bounds Read

Summary A buffer pointer underflow vulnerability exists in curl's telnet protocol handler lib/telnet.c. When processing telnet suboptions in the CURLTSSE state, the code unconditionally decrements the suboption buffer pointer by 2 subpointer -= 2, even when the CURLSBACCUM macro skips writing due...

Exploit for Deserialization of Untrusted Data in Facebook React

🎯 CVE-2025-55182-advanced-scanner- - Detect and Exploit Vulner...

curl: Security hardening: missing integer overflow check in curl_load_library()

Summary A missing integer overflow check was identified in lib/systemwin32.c::curlloadlibrary when calculating the buffer size for a DLL path. On 32-bit Windows builds, the unchecked size calculation can wrap around, resulting in an undersized heap allocation followed by unbounded string copies v...

SUSE-SU-2026:20008-1 Security update for qemu

This update for qemu fixes the following issues: Security issues fixed: - CVE-2025-12464: stack-based buffer overflow in the e1000 network device operations can be exploited by a malicious guest user to crash the QEMU process on the host bsc1253002. - CVE-2025-11234: use-after-free in WebSocket...

curl: libcurl WebSocket handshake accepts any Sec-WebSocket-Accept

Summary: libcurl upgrades to WebSocket without validating Sec-WebSocket-Accept, allowing a spoofed 101 response to complete the handshake and inject frames; AI assistance was used to draft this report. Steps to Reproduce: 1. Clone and build curl from source: git clone --depth=1...

AlmaLinux 8 : curl (ALSA-2025:23383)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2025:23383 advisory. curl: libcurl: Curl out of bounds read for cookie path CVE-2025-9086 Tenable has extracted the preceding description block directly from the AlmaLinux security...

GHSA-83JG-M2PM-4JXJ Cowrie has a SSRF vulnerability in wget/curl emulation enabling DDoS amplification

Summary A Server-Side Request Forgery SSRF vulnerability in Cowrie's emulated shell mode allows unauthenticated attackers to abuse the honeypot as an amplification vector for HTTP-based denial-of-service attacks against arbitrary third-party hosts. Details When Cowrie operates in emulated shell...

Cowrie has a SSRF vulnerability in wget/curl emulation enabling DDoS amplification

Summary A Server-Side Request Forgery SSRF vulnerability in Cowrie's emulated shell mode allows unauthenticated attackers to abuse the honeypot as an amplification vector for HTTP-based denial-of-service attacks against arbitrary third-party hosts. Details When Cowrie operates in emulated shell...

curl: Functional Regression in Digest Authentication: Failure to handle optional spaces and escaped quotes

Summary A recent migration of the Digest authentication parsing logic to the curlxstr strparse API introduced two functional parsing regressions in lib/vauth/digest.c. 1. Optional Whitespace OWS Handling The current implementation fails to skip optional whitespace after comma delimiters in...

curl: A logic error in detect_proxy caused truncation of environment variable names for long protocol schemes.

In lib/url.c, the detectproxy function uses a fixed-size buffer, proxyenv20, to construct proxy environment variable names e.g., httpproxy. However, the curl URL parser lib/urlapi.c allows protocol schemes up to 40 characters MAXSCHEMELEN. When a protocol scheme longer than 12 characters is used,...

PT-2025-54458

Name of the Vulnerable Software and Affected Versions Cowrie versions prior to 2.9.0 Description Cowrie versions before 2.9.0 have a server-side request forgery SSRF issue in the emulated shell implementations of wget and curl. The default configuration allows these commands to make real outbound...

RHSA-2025:23383 Red Hat Security Advisory: curl security update

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curl security update

An update is available for curl. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The curl packages provide the libcurl library and the curl utility for downloadi...

RLSA-2025:23383 Moderate: curl security update

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fixes: curl: libcurl: Curl out of bounds read for cookie path CVE-2025-9086 For more details about the security issues, including...

curl: Unbounded memory consumption via compressed HTTP responses (gzip/brotli/zstd)

During a review of curl's handling of response decompression, it was noticed that no limit exists on the final uncompressed data volume from compressed HTTP replies. Instead of setting constraints, the current design allows indefinite expansion during processing. This absence of limits could lead...

VulnCheck KEV: CVE-2025-34469

Cowrie versions prior to 2.9.0 contain a server-side request forgery SSRF vulnerability in the emulated shell implementation of wget and curl. In the default emulated shell configuration, these command emulations perform real outbound HTTP requests to attacker-supplied destinations. Because no...

RockyLinux 8 : curl (RLSA-2025:23383)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:23383 advisory. curl: libcurl: Curl out of bounds read for cookie path CVE-2025-9086 Tenable has extracted the preceding description block directly from the RockyLinux security...