RLSA-2026:55439

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication (CVE-2026-1965)
curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect (CVE-2026-3783)
curl: curl: Man-in-the-middle attack via SSH host key bypass (CVE-2026-9547)
curl: curl: Insecure connection establishment due to TLS configuration mismatch (CVE-2026-8286)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Database specific

{
    "license": "CC-BY-4.0",
    "source_advisory": "RHSA-2026:55439",
    "license_url": "https://creativecommons.org/licenses/by/4.0/"
}

References

Credits

- Rocky Enterprise Software Foundation
- Red Hat

Affected packages

Rocky Linux:9 / curl

Package

Name: curl
Purl: pkg:rpm/rocky-linux/curl?distro=rocky-linux-9&epoch=0

Affected ranges

Type

ECOSYSTEM

Events

Introduced

Fixed

0:7.76.1-40.el9_8.5

Database specific

Show details

{
    "yum_repository": "BaseOS"
}

Database specific

source

"https://storage.googleapis.com/resf-osv-data/RLSA-2026:55439.json"