CVE-2026-75803
Fixed in a distro release EPSS <1%CVSS 9.1
Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function. Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and expecting the call to check the AEAD tag may accept forged messages. CWE: CWE-354 (Improper Validation of Integrity Check Value) Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was passed to the function. The callers of this function might believe that a successful return indicates a valid AEAD tag for these ciphers, even when that has not truly been validated in this case. FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module.
Products: OpenSSL
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.21 | openssl | 3.3.7-r1 |
| Alpine 3.22 | openssl | 3.5.8-r0 |
| Alpine 3.23 | openssl | 3.5.8-r0 |
| Alpine 3.24 | openssl | 3.5.8-r0 |
| Chainguard | eco-python-openssl-4 | 4.0.2-r0 |
| Chainguard | eco-python-openssl-4-pyca | 4.0.2-r0 |
| Chainguard | eco-python-openssl-4-pyca-dev | 4.0.2-r0 |
| Chainguard | openssl-provider-fips-3.4.0 | 0 |
| Chainguard | openssl-provider-fips-3.4.0-dbg | 0 |
| Chainguard | openssl-provider-fips-3.6.0 | 0 |
| Chainguard | openssl-provider-fips-3.6.0-dbg | 0 |
| Debian 12 | openssl | 3.0.22-1~deb12u1 |
| Debian 13 | openssl | 3.5.7-1~deb13u2 |
| Debian 14 | openssl | 3.6.4-1 |
| Red Hat hummingbird 1 | bootupd | 0:0.2.36-3.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 | 0:0.2.36-3.hum1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | openssl-3 | 3.0.8-150500.5.75.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | openssl-3 | 3.0.8-150500.5.75.1 |
| SUSE Linux Enterprise Micro 5.3 | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise Micro 5.4 | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | openssl-3 | 3.5.0-150700.5.50.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | openssl-3 | 3.0.8-150500.5.75.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | openssl-3 | 3.1.4-150600.5.64.1 |
| SUSE Linux Enterprise Server 16.0 | openssl-3 | 3.5.0-160000.10.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | openssl-3 | 3.0.8-150400.4.98.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | openssl-3 | 3.0.8-150500.5.75.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | openssl-3 | 3.1.4-150600.5.64.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | openssl-3 | 3.5.0-160000.10.1 |
| SUSE Linux Micro 6.0 | openssl-3 | 3.1.4-17.1 |
| SUSE Linux Micro 6.1 | openssl-3 | 3.1.4-slfo.1.1_13.1 |
| SUSE Linux Micro 6.2 | openssl-3 | 3.5.0-160000.10.1 |
| Ubuntu 22.04 LTS | edk2 | 2022.02-3ubuntu0.22.04.7 |
| Ubuntu 22.04 LTS | openssl | 3.0.2-0ubuntu1.29 |
| Ubuntu 24.04 LTS | edk2 | 2024.02-2ubuntu0.10 |
| Ubuntu 24.04 LTS | openssl | 3.0.13-0ubuntu3.15 |
| Ubuntu 26.04 LTS | edk2 | 2025.11-3ubuntu7.3 |
| Ubuntu 26.04 LTS | edk2-hwe | no fix |
| Ubuntu 26.04 LTS | openssl | 3.5.5-1ubuntu3.4 |
| Ubuntu 26.04 LTS | openssl | 3.5.5-1ubuntu3.5 |
| Ubuntu 26.10 | edk2 | no fix |
| Ubuntu 26.10 | edk2-hwe | no fix |
| Ubuntu Pro 16.04 LTS | edk2 | 0~20160408.ffea0a2c-2ubuntu0.2+esm4 |
| Ubuntu Pro 16.04 LTS | nodejs | no fix |
| Ubuntu Pro 18.04 LTS | edk2 | 0~20180205.c0d9813c-2ubuntu0.3+esm3 |
| Ubuntu Pro 18.04 LTS | nodejs | no fix |
| Ubuntu Pro 20.04 LTS | edk2 | 0~20191122.bd85bf54-2ubuntu3.6+esm1 |
| Ubuntu Pro FIPS-preview 22.04 LTS | openssl | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | openssl-fips | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | openssl | 3.0.2-0ubuntu1.29+Fips1 |
| Ubuntu Pro FIPS-updates 22.04 LTS | openssl-fips | no fix |
| Ubuntu Pro FIPS-updates 24.04 LTS | openssl-fips | 3.0.13-0ubuntu3.15+Fips1 |
| openSUSE Leap 16.0 | openssl-3 | 3.5.0-160000.10.1 |
| openSUSE Tumbleweed | openssl-3 | 3.5.3-8.1 |