Description
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 unspecified vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | curl | 7.43.0-1 | — |
| Debian 13 | curl | 7.43.0-1 | — |
| Debian 12 | curl | 7.43.0-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 7.51.0-1.1 | openSUSE-SU-2024:10303-1 |
Advisories 1
- openSUSE-SU-2024:10303-1 curl-7.51.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://kc.mcafee.com/corporate/index?page=content&id=SB10131
- http://curl.haxx.se/docs/adv_20150617A.html
- FEDORA-2015-10155 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- 75385 vdb-entry
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- 91787 vdb-entry
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- GLSA-201509-02 vendor-advisory