CVE-2026-48851

Name
CVE-2026-48851
Description
PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not cleared between proxy authentication and the main session.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cve@mitre.org https://lists.tartarus.org/pipermail/putty-announce/2026/000042.html
cve@mitre.org https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/telnet-trust-sigil.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:* putty >= 0.77 < 0.84

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
putty edge-main 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-main 0.80-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-community 0.83-r2 None possibly vulnerable
putty edge-community 0.83-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.83-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.82-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-community 0.80-r0 None possibly vulnerable
putty 3.23-community 0.83-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
putty 3.19-main 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty 3.19-main 0.80-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable