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Search Results (24542 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2021-23336 | 7 Debian, Djangoproject, Fedoraproject and 4 more | 14 Debian Linux, Django, Fedora and 11 more | 2026-10-14 | 5.9 Medium |
| The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter. | ||||
| CVE-2021-22947 | 9 Apple, Debian, Fedoraproject and 6 more | 37 Macos, Debian Linux, Fedora and 34 more | 2026-10-14 | 5.9 Medium |
| When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server. | ||||
| CVE-2021-22946 | 9 Apple, Debian, Fedoraproject and 6 more | 40 Macos, Debian Linux, Fedora and 37 more | 2026-10-14 | 7.5 High |
| A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network. | ||||
| CVE-2026-88842 | 1 Redhat | 1 Hummingbird | 2026-10-14 | 3.3 Low |
| A flaw was found in BusyBox dpkg. The write_status_file() function does not reset a field cursor between package stanzas. When two packages are removed in a single invocation and the first stanza is larger than the second, the second package stanza can be dropped from the status file, causing limited data corruption. | ||||
| CVE-2021-4209 | 3 Gnu, Netapp, Redhat | 6 Gnutls, Active Iq Unified Manager, Hci Bootstrap Os and 3 more | 2026-10-14 | 6.5 Medium |
| A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances. | ||||
| CVE-2021-4189 | 4 Debian, Netapp, Python and 1 more | 6 Debian Linux, Ontap Select Deploy Administration Utility, Python and 3 more | 2026-10-14 | 5.3 Medium |
| A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible. | ||||
| CVE-2021-4122 | 2 Cryptsetup Project, Redhat | 2 Cryptsetup, Enterprise Linux | 2026-10-14 | 4.3 Medium |
| It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium. | ||||
| CVE-2021-4037 | 3 Debian, Linux, Redhat | 4 Debian Linux, Linux Kernel, Enterprise Linux and 1 more | 2026-10-14 | 4.4 Medium |
| A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS. | ||||
| CVE-2021-22925 | 8 Apple, Fedoraproject, Haxx and 5 more | 28 Mac Os X, Macos, Fedora and 25 more | 2026-10-14 | 5.3 Medium |
| curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application. | ||||
| CVE-2021-22924 | 8 Debian, Fedoraproject, Haxx and 5 more | 55 Debian Linux, Fedora, Libcurl and 52 more | 2026-10-14 | 3.7 Low |
| libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate. | ||||
| CVE-2021-22923 | 7 Fedoraproject, Haxx, Netapp and 4 more | 25 Fedora, Curl, Cloud Backup and 22 more | 2026-10-14 | 5.3 Medium |
| When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened. | ||||
| CVE-2021-22922 | 7 Fedoraproject, Haxx, Netapp and 4 more | 25 Fedora, Curl, Cloud Backup and 22 more | 2026-10-14 | 6.5 Medium |
| When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk. | ||||
| CVE-2021-22901 | 6 Haxx, Netapp, Oracle and 3 more | 35 Curl, Active Iq Unified Manager, Cloud Backup and 32 more | 2026-10-14 | 8.1 High |
| curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory. | ||||
| CVE-2021-22898 | 7 Debian, Fedoraproject, Haxx and 4 more | 13 Debian Linux, Fedora, Curl and 10 more | 2026-10-14 | 3.1 Low |
| curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol. | ||||
| CVE-2021-22890 | 9 Broadcom, Debian, Fedoraproject and 6 more | 12 Fabric Operating System, Debian Linux, Fedora and 9 more | 2026-10-14 | 4.3 Medium |
| curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check. | ||||
| CVE-2021-22876 | 9 Broadcom, Debian, Fedoraproject and 6 more | 15 Fabric Operating System, Debian Linux, Fedora and 12 more | 2026-10-14 | 5.3 Medium |
| curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request. | ||||
| CVE-2021-20305 | 5 Debian, Fedoraproject, Netapp and 2 more | 10 Debian Linux, Fedora, Active Iq Unified Manager and 7 more | 2026-10-14 | 8.1 High |
| A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability. | ||||
| CVE-2021-20232 | 3 Fedoraproject, Gnu, Redhat | 3 Fedora, Gnutls, Enterprise Linux | 2026-10-14 | 9.8 Critical |
| A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences. | ||||
| CVE-2021-20231 | 4 Fedoraproject, Gnu, Netapp and 1 more | 5 Fedora, Gnutls, Active Iq Unified Manager and 2 more | 2026-10-14 | 9.8 Critical |
| A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences. | ||||
| CVE-2026-90954 | 1 Redhat | 1 Hummingbird | 2026-10-14 | 7.8 High |
| A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this ordering: the first member declares a symlink pointing to an absolute path (e.g., '/'), which is deferred as unsafe but flushed after the first member. The second member declares a regular file whose path traverses the now-live symlink, resulting in a file being written outside the intended extraction directory. This could allow an attacker to write arbitrary files to arbitrary locations when a user extracts a crafted .deb package. | ||||