CVE-2026-42015
MEDIUMGnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling
Title source: cnaDescription
A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.
References (17)
Core 17
Core References
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:26319
https://access.redhat.com/errata/RHSA-2026:26319
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:26409
https://access.redhat.com/errata/RHSA-2026:26409
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:29197
https://access.redhat.com/errata/RHSA-2026:29197
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30004
https://access.redhat.com/errata/RHSA-2026:30004
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2026:20613
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30849
https://access.redhat.com/errata/RHSA-2026:30849
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30850
https://access.redhat.com/errata/RHSA-2026:30850
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:32962
https://access.redhat.com/errata/RHSA-2026:32962
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:13274
https://access.redhat.com/errata/RHSA-2026:13274
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:20611
https://access.redhat.com/errata/RHSA-2026:20611
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:33125
https://access.redhat.com/errata/RHSA-2026:33125
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:41921
https://access.redhat.com/errata/RHSA-2026:41921
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-42015
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2467678
https://bugzilla.redhat.com/show_bug.cgi?id=2467678
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:20612
https://access.redhat.com/errata/RHSA-2026:20612
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:43575
https://access.redhat.com/errata/RHSA-2026:43575
Scores
CVSS v3
5.3
EPSS
0.0073
EPSS Percentile
50.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-193
Status
published
Products (34)
Red Hat/Red Hat Discovery 2
1782159791
Red Hat/Red Hat Discovery 2
1782166952
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 10
0:3.8.10-4.el10_2
Red Hat/Red Hat Enterprise Linux 10.0 Extended Update Support
0:3.8.9-9.el10_0.19
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 7 Extended Lifecycle Support
0:3.3.29-9.el7_9.2
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 8
0:3.6.16-8.el8_10.6
... and 24 more
Published
May 26, 2026
Tracked Since
May 27, 2026