Total
121 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2024-2398 | 4 Apple, Fedoraproject, Haxx and 1 more | 22 Macos, Fedora, Curl and 19 more | 2025-07-30 | N/A | 8.6 HIGH |
| When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application. | |||||
| CVE-2024-2466 | 3 Apple, Haxx, Netapp | 12 Macos, Curl, Bootstrap Os and 9 more | 2025-07-30 | N/A | 6.5 MEDIUM |
| libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc). | |||||
| CVE-2024-8096 | 3 Debian, Haxx, Netapp | 15 Debian Linux, Curl, Active Iq Unified Manager and 12 more | 2025-07-30 | N/A | 6.5 MEDIUM |
| When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate. | |||||
| CVE-2024-2004 | 4 Apple, Fedoraproject, Haxx and 1 more | 15 Macos, Fedora, Curl and 12 more | 2025-07-30 | N/A | 3.5 LOW |
| When a protocol selection parameter option disables all protocols without adding any then the default set of protocols would remain in the allowed set due to an error in the logic for removing protocols. The below command would perform a request to curl.se with a plaintext protocol which has been explicitly disabled. curl --proto -all,-http http://curl.se The flaw is only present if the set of selected protocols disables the entire set of available protocols, in itself a command with no practical use and therefore unlikely to be encountered in real situations. The curl security team has thus assessed this to be low severity bug. | |||||
| CVE-2024-2379 | 3 Apple, Haxx, Netapp | 20 Macos, Curl, Active Iq Unified Manager and 17 more | 2025-07-30 | N/A | 6.3 MEDIUM |
| libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL. If told to use an unknown/bad cipher or curve, the error path accidentally skips the verification and returns OK, thus ignoring any certificate problems. | |||||
| CVE-2025-0167 | 2 Haxx, Netapp | 25 Curl, Bootstrap Os, Element Software and 22 more | 2025-07-30 | N/A | 3.4 LOW |
| When asked to use a `.netrc` file for credentials **and** to follow HTTP redirects, curl could leak the password used for the first host to the followed-to host under certain circumstances. This flaw only manifests itself if the netrc file has a `default` entry that omits both login and password. A rare circumstance. | |||||
| CVE-2025-5025 | 1 Haxx | 1 Curl | 2025-07-30 | N/A | 4.8 MEDIUM |
| libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing. | |||||
| CVE-2025-5399 | 1 Haxx | 1 Curl | 2025-07-30 | N/A | 7.5 HIGH |
| Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application. | |||||
| CVE-2025-0665 | 2 Haxx, Netapp | 13 Curl, Bootstrap Os, H300s and 10 more | 2025-07-30 | N/A | 9.8 CRITICAL |
| libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve. | |||||
| CVE-2024-11053 | 2 Haxx, Netapp | 19 Curl, Bootstrap Os, H300s and 16 more | 2025-07-30 | N/A | 3.4 LOW |
| When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, curl could leak the password used for the first host to the followed-to host under certain circumstances. This flaw only manifests itself if the netrc file has an entry that matches the redirect target hostname but the entry either omits just the password or omits both login and password. | |||||
| CVE-2023-46218 | 2 Fedoraproject, Haxx | 2 Fedora, Curl | 2025-06-30 | N/A | 6.5 MEDIUM |
| This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain. | |||||
| CVE-2025-0725 | 3 Haxx, Netapp, Zlib | 12 Curl, Libcurl, Hci Baseboard Management Controller and 9 more | 2025-06-27 | N/A | 7.3 HIGH |
| When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zlib 1.2.0.3 or older**, an attacker-controlled integer overflow would make libcurl perform a buffer overflow. | |||||
| CVE-2025-4947 | 1 Haxx | 1 Curl | 2025-06-26 | N/A | 6.5 MEDIUM |
| libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks. | |||||
| CVE-2024-0853 | 1 Haxx | 1 Curl | 2025-06-20 | N/A | 5.3 MEDIUM |
| curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check. | |||||
| CVE-2022-42915 | 5 Apple, Fedoraproject, Haxx and 2 more | 13 Macos, Fedora, Curl and 10 more | 2025-05-07 | N/A | 8.1 HIGH |
| curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0. | |||||
| CVE-2022-35252 | 5 Apple, Debian, Haxx and 2 more | 18 Macos, Debian Linux, Curl and 15 more | 2025-05-05 | N/A | 3.7 LOW |
| When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses. Effectively allowing a"sister site" to deny service to all siblings. | |||||
| CVE-2022-32208 | 6 Apple, Debian, Fedoraproject and 3 more | 19 Macos, Debian Linux, Fedora and 16 more | 2025-05-05 | 4.3 MEDIUM | 5.9 MEDIUM |
| When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly. This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject data to the client. | |||||
| CVE-2022-32206 | 6 Debian, Fedoraproject, Haxx and 3 more | 30 Debian Linux, Fedora, Curl and 27 more | 2025-05-05 | 4.3 MEDIUM | 6.5 MEDIUM |
| curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors. | |||||
| CVE-2022-32205 | 7 Apple, Debian, Fedoraproject and 4 more | 29 Macos, Debian Linux, Fedora and 26 more | 2025-05-05 | 4.3 MEDIUM | 4.3 MEDIUM |
| A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.This denial state might remain for as long as the same cookies are kept, match and haven't expired. Due to cookie matching rules, a server on `foo.example.com` can set cookies that also would match for `bar.example.com`, making it it possible for a "sister server" to effectively cause a denial of service for a sibling site on the same second level domain using this method. | |||||
| CVE-2022-32207 | 6 Apple, Debian, Fedoraproject and 3 more | 19 Macos, Debian Linux, Fedora and 16 more | 2025-04-23 | 7.5 HIGH | 9.8 CRITICAL |
| When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accidentally *widen* the permissions for the target file, leaving the updated file accessible to more users than intended. | |||||