CVE-2026-5419
Fixed in a distro release EPSS <1%CVSS 3.7
A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Cert Manager support for Red Hat OpenShift release 1.17, Cert Manager support for Red Hat OpenShift release 1.18, Cert Manager support for Red Hat OpenShift release 1.20, Red Hat Discovery 2, Red Hat Hardened Images, Red Hat OpenShift AI 3.4, Red Hat Update Infrastructure 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.20 | gnutls | 3.8.13-r0 |
| Alpine 3.21 | gnutls | 3.8.13-r0 |
| Alpine 3.22 | gnutls | 3.8.13-r0 |
| Alpine 3.23 | gnutls | 3.8.13-r0 |
| Alpine 3.24 | gnutls | 3.8.13-r0 |
| Debian 12 | gnutls28 | 3.7.9-2+deb12u7 |
| Debian 13 | gnutls28 | 3.8.9-3+deb13u4 |
| Debian 14 | gnutls28 | 3.8.13-1 |
| Red Hat Enterprise Linux 10.2 | gnutls | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-c++ | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-c++-debuginfo | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-dane | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-dane-debuginfo | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-debuginfo | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-debugsource | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-devel | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-fips | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-utils | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnutls-utils-debuginfo | 0:3.8.10-4.el10_2 |
| Red Hat Enterprise Linux 9 | gnutls | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-c++ | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-c++-debuginfo | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-dane | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-dane-debuginfo | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-debuginfo | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-debugsource | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-devel | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-utils | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux 9 | gnutls-utils-debuginfo | 0:3.8.10-4.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | gnutls | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-c++ | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-c++-debuginfo | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-dane | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-dane-debuginfo | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-debuginfo | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-debugsource | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-devel | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-fips | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-utils | 0:3.8.9-9.el10_0.19 |
| Red Hat Enterprise Linux eus 10.0 | gnutls-utils-debuginfo | 0:3.8.9-9.el10_0.19 |
| Red Hat hummingbird 1 | gnutls | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | gnutls-c++ | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | gnutls-dane | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | gnutls-devel | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | gnutls-fips | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | gnutls-utils | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | mingw32-gnutls | 0:3.8.13-1.hum1 |
| Red Hat hummingbird 1 | mingw64-gnutls | 0:3.8.13-1.hum1 |
| Red Hat rhel e4s 9.4 | gnutls | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-c++ | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-c++-debuginfo | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-dane | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-dane-debuginfo | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-debuginfo | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-debugsource | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-devel | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-utils | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel e4s 9.4 | gnutls-utils-debuginfo | 0:3.8.3-4.el9_4.6 |
| Red Hat rhel eus 9.6 | gnutls | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-c++ | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-dane | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-debuginfo | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-debugsource | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-devel | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-utils | 0:3.8.3-6.el9_6.4 |
| Red Hat rhel eus 9.6 | gnutls-utils-debuginfo | 0:3.8.3-6.el9_6.4 |
| Rocky Linux 10 | gnutls | 0:3.8.10-4.el10_2 |
| Rocky Linux 9 | gnutls | 0:3.8.10-4.el9_8 |
| Ubuntu 22.04 LTS | gnutls28 | 3.7.3-4ubuntu1.9 |
| Ubuntu 24.04 LTS | gnutls28 | 3.8.3-1.1ubuntu3.6 |
| Ubuntu 25.10 | gnutls28 | 3.8.9-3ubuntu2.2 |
| Ubuntu 26.04 LTS | gnutls28 | 3.8.12-2ubuntu1.1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | gnutls28 | 3.8.3-1.1ubuntu3.6+Fips1.2 |
| openSUSE Tumbleweed | gnutls | 3.8.13-1.1 |