Curl
by Curl
Source repositories
CVEs (157)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| 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-2021-22898 | Low | 0.13 | 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-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-2011-3389 | 0.09 | — | 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-2021-22901 | 0.05 | — | 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-2013-0249 | 0.05 | — | 0.23 | Mar 8, 2013 | Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote attackers to cause a denial of service (crash) and possibly execute… | |||
| CVE-2009-0037 | 0.04 | — | 0.08 | 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 | — | 0.38 | 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-2023-38039 | 0.01 | — | 0.62 | Sep 15, 2023 | 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 did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an… | |||
| 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 | — | 0.09 | 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 | — | 0.08 | 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 | — | 0.08 | 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 | — | 0.18 | 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. | |||
| CVE-2015-3144 | 0.01 | — | 0.11 | Apr 24, 2015 | The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) or possibly have other unspecified impact via a zero-length host name, as… | |||
| CVE-2015-3143 | 0.01 | — | 0.16 | Apr 24, 2015 | cURL and libcurl 7.10.6 through 7.41.0 does not properly re-use NTLM connections, which allows remote attackers to connect as other users via an unauthenticated request, a similar issue to CVE-2014-0015. | |||
| CVE-2014-3613 | 0.01 | — | 0.07 | Nov 18, 2014 | cURL and libcurl before 7.38.0 does not properly handle IP addresses in cookie domain names, which allows remote attackers to set cookies for or send arbitrary cookies to certain sites, as demonstrated by a site at 192.168.0.1 setting cookies for a site at 127.168.0.1. | |||
| CVE-2026-3805 | 0.00 | — | 0.01 | Mar 11, 2026 | When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory. | |||
| CVE-2026-3783 | 0.00 | — | 0.00 | Mar 11, 2026 | When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used… | |||
| CVE-2026-1965 | 0.00 | — | 0.00 | Mar 11, 2026 | libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a… |
- 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 0.13cvss 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 0.09cvss 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 '%'…
- CVE-2011-3389Sep 6, 2011risk 0.09cvss —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…
- CVE-2021-22901Jun 11, 2021risk 0.05cvss —epss 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-2013-0249Mar 8, 2013risk 0.05cvss —epss 0.23
Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote attackers to cause a denial of service (crash) and possibly execute…
- CVE-2009-0037Mar 5, 2009risk 0.04cvss —epss 0.08
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 0.38
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-2023-38039Sep 15, 2023risk 0.01cvss —epss 0.62
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 did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an…
- 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 0.09
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 0.08
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 0.08
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 0.18
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.
- CVE-2015-3144Apr 24, 2015risk 0.01cvss —epss 0.11
The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) or possibly have other unspecified impact via a zero-length host name, as…
- CVE-2015-3143Apr 24, 2015risk 0.01cvss —epss 0.16
cURL and libcurl 7.10.6 through 7.41.0 does not properly re-use NTLM connections, which allows remote attackers to connect as other users via an unauthenticated request, a similar issue to CVE-2014-0015.
- CVE-2014-3613Nov 18, 2014risk 0.01cvss —epss 0.07
cURL and libcurl before 7.38.0 does not properly handle IP addresses in cookie domain names, which allows remote attackers to set cookies for or send arbitrary cookies to certain sites, as demonstrated by a site at 192.168.0.1 setting cookies for a site at 127.168.0.1.
- CVE-2026-3805Mar 11, 2026risk 0.00cvss —epss 0.01
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
- CVE-2026-3783Mar 11, 2026risk 0.00cvss —epss 0.00
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used…
- CVE-2026-1965Mar 11, 2026risk 0.00cvss —epss 0.00
libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a…
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