CVE-2026-42764
Fixed in a distro release EPSS 1%CVSS 7.5
Issue summary: Receiving a QUIC initial packet with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial of Service. If the address validation is disabled in the OpenSSL QUIC server implementation, an attacker can crash the server by sending an initial packet with an invalid or expired token. By default, the client address validation is enabled in the OpenSSL QUIC server implementation, which makes the default configuration not vulnerable to this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with the SSL_new_listener() call, the address validation is disabled making the vulnerable code reachable. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
Products: OpenSSL
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | openssl | 1:3.5.5-4.el10_2.alma.1 |
| AlmaLinux 10 | openssl-devel | 1:3.5.5-4.el10_2.alma.1 |
| AlmaLinux 10 | openssl-libs | 1:3.5.5-4.el10_2.alma.1 |
| AlmaLinux 10 | openssl-perl | 1:3.5.5-4.el10_2.alma.1 |
| AlmaLinux 9 | openssl | 1:3.5.5-4.el9_8 |
| AlmaLinux 9 | openssl-devel | 1:3.5.5-4.el9_8 |
| AlmaLinux 9 | openssl-libs | 1:3.5.5-4.el9_8 |
| AlmaLinux 9 | openssl-perl | 1:3.5.5-4.el9_8 |
| Alpine 3.22 | openssl | 3.5.7-r0 |
| Alpine 3.23 | openssl | 3.5.7-r0 |
| Alpine 3.24 | openssl | 3.5.7-r0 |
| Chainguard | libcrypto3 | 3.6.3-r0 |
| Chainguard | libcrypto3-2.34 | 3.6.3-r0 |
| Chainguard | openssl | 3.6.3-r0 |
| Chainguard | openssl-provider-fips-3.6.0 | 0 |
| Chainguard | openssl-provider-fips-3.6.0-dbg | 0 |
| Debian 13 | openssl | 3.5.6-1~deb13u2 |
| Debian 14 | openssl | 3.6.3-1 |
| Red Hat Enterprise Linux 10.2 | openssl | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-debuginfo | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-debugsource | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-devel | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-libs | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-libs-debuginfo | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssl-perl | 1:3.5.5-4.el10_2 |
| Red Hat Enterprise Linux 9 | openssl | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-debuginfo | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-debugsource | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-devel | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-libs | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-libs-debuginfo | 1:3.5.5-4.el9_8 |
| Red Hat Enterprise Linux 9 | openssl-perl | 1:3.5.5-4.el9_8 |
| Red Hat hummingbird 1 | bootupd | 0:0.3.2-1.hum1 |
| Red Hat hummingbird 1 | chunkah | 0:0.6.0-3.hum1 |
| Red Hat hummingbird 1 | openssl | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-config-fips | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-devel | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-devel-engine | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-fips-provider-upstream | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-libs | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl-perl | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl3 | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl3-devel | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl3-devel-engine | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | openssl3-libs | 0:3.5.8-0.1.hum1 |
| Red Hat hummingbird 1 | python-cryptography | 0:50.0.0-1.hum1 |
| Red Hat hummingbird 1 | python3-cryptography | 0:50.0.0-1.hum1 |
| Red Hat hummingbird 1 | ruby3.3 | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.3-bundled-gems | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.3-default-gems | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.3-devel | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.3-doc | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.3-libs | 0:3.3.10-23.6.hum1 |
| Red Hat hummingbird 1 | ruby3.4 | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby3.4-bundled-gems | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby3.4-default-gems | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby3.4-devel | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby3.4-doc | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby3.4-libs | 0:3.4.10-31.7.hum1 |
| Red Hat hummingbird 1 | ruby4.0 | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | ruby4.0-bundled-gems | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | ruby4.0-default-gems | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | ruby4.0-devel | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | ruby4.0-doc | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | ruby4.0-libs | 0:4.0.6-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-bigdecimal | 0:3.1.5-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-bundler | 0:2.5.22-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-devel | 0:3.5.22-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-io-console | 0:0.7.1-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-irb | 0:1.13.1-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-json | 0:2.7.2-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-minitest | 0:5.20.0-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-power_assert | 0:2.0.3-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-psych | 0:5.1.2-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-racc | 0:1.7.3-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rake | 0:13.1.0-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rbs | 0:3.4.0-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rdoc | 0:6.6.3.1-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rexml | 0:3.4.4-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rss | 0:0.3.1-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-rubygems | 0:3.5.22-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-test-unit | 0:3.6.1-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem3.3-typeprof | 0:0.21.9-23.6.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-bigdecimal | 0:4.0.1-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-bundler | 0:4.0.16-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-devel | 0:4.0.16-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-io-console | 0:0.8.2-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-irb | 0:1.16.0-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-json | 0:2.18.0-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-minitest | 0:6.0.0-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-power_assert | 0:3.0.1-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-psych | 0:5.3.1-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-racc | 0:1.8.1-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rake | 0:13.3.1-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rbs | 0:3.10.0-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rdoc | 0:7.0.4-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rexml | 0:3.4.4-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rss | 0:0.3.2-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-rubygems | 0:4.0.16-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-test-unit | 0:3.7.5-37.3.hum1 |
| Red Hat hummingbird 1 | rubygem4.0-typeprof | 0:0.31.1-37.3.hum1 |
| Red Hat hummingbird 1 | rust-bootupd | 0:0.3.2-1.hum1 |
| Rocky Linux 10 | openssl | 1:3.5.5-4.el10_2 |
| Rocky Linux 9 | openssl | 1:3.5.5-4.el9_8 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | openssl | 3.5.0-150700.3.4.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | openssl-3 | 3.5.0-150700.5.45.2 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | nodejs24 | 24.18.1-150700.15.18.1 |
| SUSE Linux Enterprise Server 16.0 | openssl-3 | 3.5.0-160000.8.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | openssl-3 | 3.5.0-160000.8.1 |
| SUSE Linux Micro 6.2 | openssl-3 | 3.5.0-160000.8.1 |
| Ubuntu 22.04 LTS | openssl | 3.0.2-0ubuntu1.25 |
| Ubuntu 24.04 LTS | openssl | 3.0.13-0ubuntu3.11 |
| Ubuntu 25.10 | openssl | 3.5.3-1ubuntu3.4 |
| Ubuntu 26.04 LTS | edk2 | no fix |
| Ubuntu 26.04 LTS | edk2-hwe | no fix |
| Ubuntu 26.04 LTS | openssl | 3.5.5-1ubuntu3.2 |
| Ubuntu 26.10 | edk2 | no fix |
| Ubuntu 26.10 | edk2-hwe | no fix |
| Ubuntu Pro 22.04 LTS | nodejs | no fix |
| Wolfi | libcrypto3 | 3.6.3-r0 |
| Wolfi | openssl | 3.6.3-r0 |
| openSUSE Leap 16.0 | openssl-3 | 3.5.0-160000.8.1 |
| openSUSE Tumbleweed | openssl-3 | 3.5.3-6.1 |