Filtered by vendor Haxx
Subscriptions
Total
160 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2023-46219 | 3 Fedoraproject, Haxx, Redhat | 3 Fedora, Curl, Jboss Core Services | 2025-11-04 | 5.3 Medium |
| When saving HSTS data to an excessively long file name, curl could end up removing all contents, making subsequent requests using that file unaware of the HSTS status they should otherwise use. | ||||
| CVE-2023-38546 | 2 Haxx, Redhat | 6 Libcurl, Enterprise Linux, Jboss Core Services and 3 more | 2025-11-04 | 3.7 Low |
| This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met. libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers. libcurl provides a function call that duplicates en easy handle called [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as `none` (using the four ASCII letters, no quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course. | ||||
| CVE-2024-7264 | 2 Haxx, Redhat | 3 Libcurl, Enterprise Linux, Service Mesh | 2025-11-03 | 6.3 Medium |
| libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the *time fraction*, leading to a `strlen()` getting performed on a pointer to a heap buffer area that is not (purposely) null terminated. This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when [CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used. | ||||
| CVE-2024-9681 | 2 Curl, Haxx | 2 Curl, Curl | 2025-11-03 | 5.9 Medium |
| When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache entry, making it end sooner or later than otherwise intended. This affects curl using applications that enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS cache either needs to have been populated manually or there needs to have been previous HTTPS accesses done as the cache needs to have entries for the domains involved to trigger this problem.) When `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different period of time than what was asked for by the origin server. If `example.com` for example stops supporting HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set) timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently switch back to insecure HTTP earlier than otherwise intended. | ||||
| CVE-2024-11053 | 3 Haxx, Netapp, Redhat | 20 Curl, Bootstrap Os, H300s and 17 more | 2025-11-03 | 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-2023-38545 | 5 Fedoraproject, Haxx, Microsoft and 2 more | 19 Fedora, Libcurl, Windows 10 1809 and 16 more | 2025-08-27 | 8.8 High |
| This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due to this bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there. The target buffer being a heap based buffer, and the host name coming from the URL that curl has been told to operate with. | ||||
| CVE-2024-2398 | 6 Apple, Curl, Fedoraproject and 3 more | 27 Macos, Curl, Fedora and 24 more | 2025-07-30 | 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 | 5 Apple, Curl, Haxx and 2 more | 14 Macos, Libcurl, Curl and 11 more | 2025-07-30 | 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 | 4 Curl, Debian, Haxx and 1 more | 16 Curl, Debian Linux, Curl and 13 more | 2025-07-30 | 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 | 5 Apple, Fedoraproject, Haxx and 2 more | 16 Macos, Fedora, Curl and 13 more | 2025-07-30 | 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 | 4 Apple, Haxx, Netapp and 1 more | 21 Macos, Curl, Active Iq Unified Manager and 18 more | 2025-07-30 | 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 | 3 Curl, Haxx, Netapp | 26 Curl, Curl, Bootstrap Os and 23 more | 2025-07-30 | 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 | 2 Curl, Haxx | 2 Curl, Curl | 2025-07-30 | 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 | 2 Curl, Haxx | 3 Curl, Libcurl, Curl | 2025-07-30 | 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 | 3 Curl, Haxx, Netapp | 15 Curl, Libcurl, Curl and 12 more | 2025-07-30 | 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-2023-46218 | 3 Fedoraproject, Haxx, Redhat | 7 Fedora, Curl, Enterprise Linux and 4 more | 2025-06-30 | 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 | 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 | 2 Curl, Haxx | 2 Curl, Curl | 2025-06-26 | 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 | 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-2023-27538 | 7 Broadcom, Debian, Fedoraproject and 4 more | 16 Brocade Fabric Operating System Firmware, Debian Linux, Fedora and 13 more | 2025-06-09 | 7.7 High |
| An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection. | ||||