OpenSSL pinning bypass
CVE-2026-80230 is fixed in 16 products on 1 platform, first by curl 8.18.0-1ubuntu2.7, released September 6, 2026. It is not reported as exploited. Patch Radar priority: High.
When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| curl · Debian 14 | 8.22.0~rc3-1 | DEBIAN-CVE-2026-80230 | Sep 19, 2026 |
| curl · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| curl · Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24+esm14 | curl 7.58.0-2ubuntu3.24+esm14 | Sep 28, 2026 |
| curl · Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.25+esm9 | curl 7.68.0-1ubuntu2.25+esm9 | Sep 28, 2026 |
| curl · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.29 | curl 7.81.0-1ubuntu1.29 | Sep 28, 2026 |
| curl · Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu10.15 | curl 8.5.0-2ubuntu10.15 | Sep 28, 2026 |
| curl · Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.7 | curl 8.18.0-1ubuntu2.7 | Sep 6, 2026 |
| curl · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| curl · opensuse-leap 16.0 | 8.14.1-160000.9.1 | OPENSUSE-SU-2026:21774-1 | Sep 6, 2026 |
| curl · sles 15.6 | 8.14.1-150600.4.51.1 | SUSE-SU-2026:4047-1 | Sep 7, 2026 |
| curl · sles 15.7 | 8.14.1-150700.7.26.1 | SUSE-SU-2026:4048-1 | Sep 7, 2026 |
| curl · sles 16.0 | 8.14.1-160000.9.1 | SUSE-SU-2026:23638-1 | Sep 6, 2026 |
| curl-debuginfo · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| curl-debuginfo · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| curl-debugsource · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| curl-debugsource · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| curl-mini · sles 16.0 | 8.14.1-160000.9.1 | SUSE-SU-2026:23638-1 | Sep 6, 2026 |
| curl-minimal · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| curl-minimal-debuginfo · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| libcurl · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl-debuginfo · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| libcurl-debuginfo · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl-devel · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| libcurl-devel · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl-minimal · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| libcurl-minimal · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl-minimal-debuginfo · Fedora 43 | 8.15.0-12.fc43 | FEDORA-2026-D65DA12723 | Nov 7, 2026 |
| libcurl-minimal-debuginfo · amzn 2023 | 8.21.0-5.amzn2023.0.2 | ALAS2023-2026-3128 | Sep 28, 2026 |
| libcurl3-gnutls · Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24+esm14 | libcurl3-gnutls 7.58.0-2ubuntu3.24+esm14 | Sep 28, 2026 |
| libcurl3-gnutls · Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.25+esm9 | libcurl3-gnutls 7.68.0-1ubuntu2.25+esm9 | Sep 28, 2026 |
| libcurl3-gnutls · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.29 | libcurl3-gnutls 7.81.0-1ubuntu1.29 | Sep 28, 2026 |
| libcurl3-nss · Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24+esm14 | libcurl3-nss 7.58.0-2ubuntu3.24+esm14 | Sep 28, 2026 |
| libcurl3-nss · Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.25+esm9 | libcurl3-nss 7.68.0-1ubuntu2.25+esm9 | Sep 28, 2026 |
| libcurl3-nss · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.29 | libcurl3-nss 7.81.0-1ubuntu1.29 | Sep 28, 2026 |
| libcurl3t64-gnutls · Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu10.15 | libcurl3t64-gnutls 8.5.0-2ubuntu10.15 | Sep 28, 2026 |
| libcurl3t64-gnutls · Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.7 | libcurl3t64-gnutls 8.18.0-1ubuntu2.7 | Sep 6, 2026 |
| libcurl4 · Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24+esm14 | libcurl4 7.58.0-2ubuntu3.24+esm14 | Sep 28, 2026 |
| libcurl4 · Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.25+esm9 | libcurl4 7.68.0-1ubuntu2.25+esm9 | Sep 28, 2026 |
| libcurl4 · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.29 | libcurl4 7.81.0-1ubuntu1.29 | Sep 28, 2026 |
| libcurl4t64 · Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu10.15 | libcurl4t64 8.5.0-2ubuntu10.15 | Sep 28, 2026 |
| libcurl4t64 · Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.7 | libcurl4t64 8.18.0-1ubuntu2.7 | Sep 6, 2026 |
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