High severity7.5NVD Advisory· Published Jun 28, 2021· Updated Jun 17, 2026
CVE-2021-29157
CVE-2021-29157
Description
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
24cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*range: >=2.3.11,<2.3.14.1
- (no CPE)range: <2.3.15
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- Dovecot/Dovecotdescription
- osv-coords19 versionspkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dovecot24&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dovecot23&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/dovecot23&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/dovecot23&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/dovecot23&distro=SUSE%20Manager%20Server%204.0
< 2.3.11.3-lp152.2.9.1+ 18 more
- (no CPE)range: < 2.3.11.3-lp152.2.9.1
- (no CPE)range: < 2.3.11.3-55.1
- (no CPE)range: < 2.3.16-1.6
- (no CPE)range: < 2.4.0-1.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-4.35.1
- (no CPE)range: < 2.3.11.3-4.35.1
- (no CPE)range: < 2.3.11.3-55.1
- (no CPE)range: < 2.3.11.3-55.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-4.35.1
- (no CPE)range: < 2.3.11.3-4.35.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
- (no CPE)range: < 2.3.11.3-24.1
Patches
Vulnerability mechanics
References
5- dovecot.org/securitynvdVendor Advisory
- security.gentoo.org/glsa/202107-41nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2021/06/28/1nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/nvd
News mentions
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