High severity8.0NVD Advisory· Published Oct 21, 2021· Updated Jun 17, 2026
CVE-2021-42097
CVE-2021-42097
Description
GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).
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Affected products
7- GNU/Mailmandescription
- osv-coords3 versionspkg:rpm/almalinux/mailmanpkg:rpm/opensuse/mailman&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/mailman&distro=SUSE%20Package%20Hub%2015%20SP2
< 3:2.1.29-12.module_el8.5.0+26+48d4c9ee.2+ 2 more
- (no CPE)range: < 3:2.1.29-12.module_el8.5.0+26+48d4c9ee.2
- (no CPE)range: < 2.1.35-lp152.7.6.1
- (no CPE)range: < 2.1.35-bp152.7.6.1
Patches
Vulnerability mechanics
References
4- www.openwall.com/lists/oss-security/2021/10/21/4nvdMailing ListPatchThird Party Advisory
- bugs.launchpad.net/mailman/+bug/1947640nvdPatchThird Party Advisory
- www.debian.org/security/2021/dsa-4991nvdThird Party Advisory
- mail.python.org/archives/list/mailman-announce%40python.org/thread/IKCO6JU755AP5G5TKMBJL6IEZQTTNPDQ/nvd
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