Curl
by Curl
Source repositories
CVEs (184)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2024-2004 | Low | 0.23 | 3.5 | 0.02 | Mar 27, 2024 | 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… | ||
| CVE-2025-0167 | Low | 0.22 | 3.4 | 0.01 | Feb 5, 2025 | 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… | ||
| CVE-2016-8623 | Low | 0.22 | 3.3 | 0.03 | Aug 1, 2018 | A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure. | ||
| CVE-2025-10966 | Med | 0.21 | 4.3 | 0.00 | Nov 7, 2025 | curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. This prevents curl from detecting MITM attackers and more. | ||
| CVE-2020-19909 | Low | 0.21 | 3.3 | 0.00 | Aug 22, 2023 | Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if,… | ||
| CVE-2016-8617 | Low | 0.21 | 3.3 | 0.01 | Jul 31, 2018 | The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`. | ||
| CVE-2016-8616 | Low | 0.17 | 3.7 | 0.03 | Aug 1, 2018 | A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has… | ||
| CVE-2024-11053 | Low | 0.15 | 3.4 | 0.01 | Dec 11, 2024 | 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… | ||
| CVE-2021-22898 | Low | 0.14 | 3.1 | 0.04 | Jun 11, 2021 | 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… | ||
| CVE-2025-15224 | Low | 0.13 | 3.1 | 0.00 | Jan 8, 2026 | When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent. | ||
| CVE-2017-7407 | Low | 0.09 | 2.4 | 0.01 | Apr 3, 2017 | The ourWriteOut function in tool_writeout.c in curl 7.53.1 might allow physically proximate attackers to obtain sensitive information from process memory in opportunistic circumstances by reading a workstation screen during use of a --write-out argument ending in a '%'… | ||
| CVE-2021-22901 | Hig | 0.05 | 8.1 | 0.60 | Jun 11, 2021 | 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… | ||
| CVE-2009-0037 | 0.04 | — | 0.09 | Mar 5, 2009 | The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary requests to intranet servers, (2) read or overwrite arbitrary files via… | |||
| CVE-2015-3145 | 0.03 | — | 0.37 | Apr 24, 2015 | The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds write and crash) or possibly have other unspecified impact via a cookie path containing… | |||
| CVE-2011-3389 | 0.02 | — | 0.73 | Sep 6, 2011 | The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to… | |||
| CVE-2018-0500 | Cri | 0.01 | 9.8 | 0.06 | Jul 11, 2018 | Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument… | ||
| CVE-2015-3237 | 0.01 | — | 0.08 | Jun 22, 2015 | The smb_request_state function in cURL and libcurl 7.40.0 through 7.42.1 allows remote SMB servers to obtain sensitive information from memory or cause a denial of service (out-of-bounds read and crash) via crafted length and offset values. | |||
| CVE-2015-3236 | 0.01 | — | 0.07 | Jun 22, 2015 | cURL and libcurl 7.40.0 through 7.42.1 send the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via… | |||
| CVE-2015-3153 | 0.01 | — | 0.07 | May 1, 2015 | The default configuration for cURL and libcurl before 7.42.1 sends custom HTTP headers to both the proxy and destination server, which might allow remote proxy servers to obtain sensitive information by reading the header contents. | |||
| CVE-2015-3148 | 0.01 | — | 0.14 | Apr 24, 2015 | cURL and libcurl 7.10.6 through 7.41.0 do not properly re-use authenticated Negotiate connections, which allows remote attackers to connect as other users via a request. |
- risk 0.23cvss 3.5epss 0.02
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…
- risk 0.22cvss 3.4epss 0.01
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…
- risk 0.22cvss 3.3epss 0.03
A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure.
- risk 0.21cvss 4.3epss 0.00
curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. This prevents curl from detecting MITM attackers and more.
- risk 0.21cvss 3.3epss 0.00
Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if,…
- risk 0.21cvss 3.3epss 0.01
The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`.
- risk 0.17cvss 3.7epss 0.03
A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has…
- risk 0.15cvss 3.4epss 0.01
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…
- risk 0.14cvss 3.1epss 0.04
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…
- risk 0.13cvss 3.1epss 0.00
When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.
- risk 0.09cvss 2.4epss 0.01
The ourWriteOut function in tool_writeout.c in curl 7.53.1 might allow physically proximate attackers to obtain sensitive information from process memory in opportunistic circumstances by reading a workstation screen during use of a --write-out argument ending in a '%'…
- risk 0.05cvss 8.1epss 0.60
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…
- CVE-2009-0037Mar 5, 2009risk 0.04cvss —epss 0.09
The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary requests to intranet servers, (2) read or overwrite arbitrary files via…
- CVE-2015-3145Apr 24, 2015risk 0.03cvss —epss 0.37
The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds write and crash) or possibly have other unspecified impact via a cookie path containing…
- CVE-2011-3389Sep 6, 2011risk 0.02cvss —epss 0.73
The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to…
- risk 0.01cvss 9.8epss 0.06
Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument…
- CVE-2015-3237Jun 22, 2015risk 0.01cvss —epss 0.08
The smb_request_state function in cURL and libcurl 7.40.0 through 7.42.1 allows remote SMB servers to obtain sensitive information from memory or cause a denial of service (out-of-bounds read and crash) via crafted length and offset values.
- CVE-2015-3236Jun 22, 2015risk 0.01cvss —epss 0.07
cURL and libcurl 7.40.0 through 7.42.1 send the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via…
- CVE-2015-3153May 1, 2015risk 0.01cvss —epss 0.07
The default configuration for cURL and libcurl before 7.42.1 sends custom HTTP headers to both the proxy and destination server, which might allow remote proxy servers to obtain sensitive information by reading the header contents.
- CVE-2015-3148Apr 24, 2015risk 0.01cvss —epss 0.14
cURL and libcurl 7.10.6 through 7.41.0 do not properly re-use authenticated Negotiate connections, which allows remote attackers to connect as other users via a request.
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