Vulnerability index

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Curl MEDIUM 5.3
CVE-2025-15079

When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts …

Fix: 8.18.0+
Fix from $1,600 2026-01-08
Curl MEDIUM 5.3
CVE-2025-14524

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, …

Fix: 8.18.0+
Fix from $1,600 2026-01-08
Curl MEDIUM 5.3
CVE-2025-14819

When doing TLS related transfers with reused easy or multi handles and altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally …

Fix: 8.18.0+
Fix from $1,600 2026-01-08
Curl MEDIUM 6.3
CVE-2025-14017

When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one thread would inadvertently change them globally a…

Fix: 8.18.0+
Fix from $1,600 2026-01-08
Curl MEDIUM 5.9
CVE-2025-13034

When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool,curl should check the public key of the server certif…

Fix: 8.18.0+
Fix from $1,600 2026-01-08
Curl HIGH 7.5
CVE-2025-9086

1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same …

Fix: 8.16.0+
Fix from $1,950 2025-09-12
Curl MEDIUM 5.3
CVE-2025-10148

curl's websocket code did not update the 32 bit mask pattern for each new outgoing frame as the specification says. Instead it used a fixed mask tha…

Fix: 8.16.0+
Fix from $1,600 2025-09-12
Curl HIGH 7.5
CVE-2025-5399

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…

Fix: 8.14.1+
Fix from $1,950 2025-06-07
Curl MEDIUM 6.5
CVE-2025-4947

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefo…

Fix: 8.14.0+
Fix from $1,600 2025-05-28
Curl HIGH 7.3
CVE-2025-0725

When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zl…

Fix: 8.12.0+
Fix from $1,950 2025-02-05
Curl HIGH 7.0
CVE-2025-0665

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resol…

No fix yet
Fix from $1,950 2025-02-05
Curl MEDIUM 6.5
CVE-2024-9681

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 oth…

Fix: 8.11.0+
Fix from $1,600 2024-11-06
Curl MEDIUM 6.5
CVE-2024-8096

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 v…

Fix: 8.10.0+
Fix from $1,600 2024-09-11
Libcurl MEDIUM 6.5
CVE-2024-7264EPSS 17%

libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect fiel…

Fix: 8.9.1+
Fix from $1,600 2024-07-31
Libcurl HIGH 7.5
CVE-2024-6197

libcurl's ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortu…

Fix: 8.9.0+
Fix from $1,950 2024-07-24
Curl HIGH 8.6
CVE-2024-2398EPSS 36%

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…

Fix: 8.7.0 / 12.7.6+
Fix from $1,950 2024-03-27
Curl MEDIUM 6.5
CVE-2024-2466

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 …

Fix: 8.7.0 / 12.7.6+
Fix from $1,600 2024-03-27
Curl MEDIUM 6.3
CVE-2024-2379

libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL. If told to use an unknown/bad c…

Fix: 12.7.6 / 13.6.8+
Fix from $1,600 2024-03-27
Curl MEDIUM 5.3
CVE-2024-0853

curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent trans…

No fix yet
Fix from $1,600 2024-02-03
Curl MEDIUM 5.3
CVE-2023-46219

When saving HSTS data to an excessively long file name, curl could end up removing all contents, making subsequent requests using that file unaware o…

Fix: 8.5.0+
Fix from $1,600 2023-12-12
Curl MEDIUM 6.5
CVE-2023-46218

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 p…

Fix: after 8.4.0
Fix from $1,600 2023-12-07
Curl HIGH 7.5
CVE-2023-38039EPSS 62%

When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl d…

Fix: 8.3.0 / 10.0.17763.5122+
Fix from $1,950 2023-09-15
Curl MEDIUM 5.9
CVE-2023-28321

An improper certificate validation vulnerability exists in curl <v8.1.0 in the way it supports matching of wildcard patterns when listed as "Subject …

Fix: 8.1.0+
Fix from $1,600 2023-05-26
Curl MEDIUM 5.9
CVE-2023-28320

A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at…

Fix: 8.1.0 / 11.7.9+
Fix from $1,600 2023-05-26
Curl HIGH 7.5
CVE-2023-28319

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. …

Fix: 8.1.0 / 11.7.9+
Fix from $1,950 2023-05-26
Curl HIGH 8.8
CVE-2023-27533

A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously c…

Fix: after 7.881
Fix from $1,950 2023-03-30
Curl HIGH 8.8
CVE-2023-27534

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix …

Fix: after 7.88.1
Fix from $1,950 2023-03-30
Libcurl MEDIUM 5.9
CVE-2023-27537

A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considera…

No fix yet
Fix from $1,600 2023-03-30
Curl CRITICAL 9.1
CVE-2023-23914

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs a…

Fix: 7.88.0 / 8.2.12+
Fix from $2,300 2023-02-23
Curl MEDIUM 6.5
CVE-2023-23915

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality to behave incorrectly whe…

Fix: 7.88.0 / 8.2.12+
Fix from $1,600 2023-02-23