# CVE-2022-27776: HackerOne: CVE-2022-27776 Insufficiently protected credentials vulnerability might leak authentication or cookie header data CVE-2022-27776 is fixed in 31 products on 2 platforms, first by curl 7.58.0-2ubuntu3.17, released April 26, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-27776 - Priority: High - CVSS: 8.1 (Important) - EPSS: 0.0410 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Apr 26, 2022 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-27776 ## Description A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.3165 | [KB5015811](https://patchblox.com/security/data/fix/microsoft/kb5015811.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.3165 | [KB5015811](https://patchblox.com/security/data/fix/microsoft/kb5015811.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.3165 | [KB5015811](https://patchblox.com/security/data/fix/microsoft/kb5015811.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 20H2 for 32-bit Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 20H2 for ARM64-based Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H1 for 32-bit Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H1 for ARM64-based Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H1 for x64-based Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H2 for 32-bit Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H2 for ARM64-based Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 10 Version 21H2 for x64-based Systems | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Microsoft | Windows 11 version 21H2 for ARM64-based Systems | 22000.795 | [KB5015814](https://patchblox.com/security/data/fix/microsoft/kb5015814.md) | Jul 12, 2022 | | Microsoft | Windows 11 version 21H2 for x64-based Systems | 22000.795 | [KB5015814](https://patchblox.com/security/data/fix/microsoft/kb5015814.md) | Jul 12, 2022 | | Microsoft | Windows Server 2019 | 17763.3165 | [KB5015811](https://patchblox.com/security/data/fix/microsoft/kb5015811.md) | Jul 12, 2022 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.3165 | [KB5015811](https://patchblox.com/security/data/fix/microsoft/kb5015811.md) | Jul 12, 2022 | | Microsoft | Windows Server 2022 | 20348.825 | [KB5015827](https://patchblox.com/security/data/fix/microsoft/kb5015827.md) | Jul 12, 2022 | | Microsoft | Windows Server 2022 (Server Core installation) | 20348.825 | [KB5015827](https://patchblox.com/security/data/fix/microsoft/kb5015827.md) | Jul 12, 2022 | | Microsoft | Windows Server, version 20H2 (Server Core Installation) | | [KB5015807](https://patchblox.com/security/data/fix/microsoft/kb5015807.md) | Jul 12, 2022 | | Linux | curl Debian 12.15 (bookworm) | 7.83.0-1 | [DEBIAN-CVE-2022-27776](https://patchblox.com/security/data/fix/linux/debian-cve-2022-27776.md) | Jun 2, 2022 | | Linux | curl Debian 13.5 (trixie) | 7.83.0-1 | [DEBIAN-CVE-2022-27776](https://patchblox.com/security/data/fix/linux/debian-cve-2022-27776.md) | Jun 2, 2022 | | Linux | curl Debian 14 | 7.83.0-1 | [DEBIAN-CVE-2022-27776](https://patchblox.com/security/data/fix/linux/debian-cve-2022-27776.md) | Jun 2, 2022 | | Linux | curl RHEL 8 | 0:7.61.1-22.el8_6.3 | [RHSA-2022:5313](https://patchblox.com/security/data/fix/linux/rhsa-2022-5313.md) | Jun 30, 2022 | | Linux | curl RHEL 9 | 0:7.76.1-14.el9_0.4 | [RHSA-2022:5245](https://patchblox.com/security/data/fix/linux/rhsa-2022-5245.md) | Jul 1, 2022 | | Linux | curl Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.17 | [curl 7.58.0-2ubuntu3.17](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-curl-7.58.0-2ubuntu3.17.md) | Apr 26, 2022 | | Linux | curl Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.10 | [curl 7.68.0-1ubuntu2.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-curl-7.68.0-1ubuntu2.10.md) | Apr 26, 2022 | | Linux | curl Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.1 | [curl 7.81.0-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-curl-7.81.0-1ubuntu1.1.md) | Apr 26, 2022 | | Linux | curl almalinux 8 | 7.61.1-22.el8_6.3 | [ALSA-2022:5313](https://patchblox.com/security/data/fix/linux/alsa-2022-5313.md) | Jun 30, 2022 | | Linux | curl amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | curl ol 8 | 0:7.61.1-22.el8_6.3 | [ELSA-2022-5313](https://patchblox.com/security/data/fix/linux/elsa-2022-5313.md) | Jun 30, 2022 | | Linux | curl ol 9 | 0:7.76.1-14.el9_0.4 | [ELSA-2022-5245](https://patchblox.com/security/data/fix/linux/elsa-2022-5245.md) | Jun 30, 2022 | | Linux | curl rocky 8 | 0:7.61.1-22.el8_6.3 | [RLSA-2022:5313](https://patchblox.com/security/data/fix/linux/rlsa-2022-5313.md) | Jun 28, 2022 | | Linux | curl-debuginfo amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | curl-debugsource amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | curl-minimal RHEL 9 | 0:7.76.1-14.el9_0.4 | [RHSA-2022:5245](https://patchblox.com/security/data/fix/linux/rhsa-2022-5245.md) | Jul 1, 2022 | | Linux | curl-minimal amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | curl-minimal ol 9 | 0:7.76.1-14.el9_0.4 | [ELSA-2022-5245](https://patchblox.com/security/data/fix/linux/elsa-2022-5245.md) | Jun 30, 2022 | | Linux | curl-minimal-debuginfo amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl RHEL 8 | 0:7.61.1-22.el8_6.3 | [RHSA-2022:5313](https://patchblox.com/security/data/fix/linux/rhsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl RHEL 9 | 0:7.76.1-14.el9_0.4 | [RHSA-2022:5245](https://patchblox.com/security/data/fix/linux/rhsa-2022-5245.md) | Jul 1, 2022 | | Linux | libcurl almalinux 8 | 7.61.1-22.el8_6.3 | [ALSA-2022:5313](https://patchblox.com/security/data/fix/linux/alsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl ol 8 | 0:7.61.1-22.el8_6.3 | [ELSA-2022-5313](https://patchblox.com/security/data/fix/linux/elsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl ol 9 | 0:7.76.1-14.el9_0.4 | [ELSA-2022-5245](https://patchblox.com/security/data/fix/linux/elsa-2022-5245.md) | Jun 30, 2022 | | Linux | libcurl-debuginfo amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl-devel RHEL 8 | 0:7.61.1-22.el8_6.3 | [RHSA-2022:5313](https://patchblox.com/security/data/fix/linux/rhsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-devel RHEL 9 | 0:7.76.1-14.el9_0.4 | [RHSA-2022:5245](https://patchblox.com/security/data/fix/linux/rhsa-2022-5245.md) | Jul 1, 2022 | | Linux | libcurl-devel almalinux 8 | 7.61.1-22.el8_6.3 | [ALSA-2022:5313](https://patchblox.com/security/data/fix/linux/alsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-devel amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl-devel ol 8 | 0:7.61.1-22.el8_6.3 | [ELSA-2022-5313](https://patchblox.com/security/data/fix/linux/elsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-devel ol 9 | 0:7.76.1-14.el9_0.4 | [ELSA-2022-5245](https://patchblox.com/security/data/fix/linux/elsa-2022-5245.md) | Jun 30, 2022 | | Linux | libcurl-minimal RHEL 8 | 0:7.61.1-22.el8_6.3 | [RHSA-2022:5313](https://patchblox.com/security/data/fix/linux/rhsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-minimal RHEL 9 | 0:7.76.1-14.el9_0.4 | [RHSA-2022:5245](https://patchblox.com/security/data/fix/linux/rhsa-2022-5245.md) | Jul 1, 2022 | | Linux | libcurl-minimal almalinux 8 | 7.61.1-22.el8_6.3 | [ALSA-2022:5313](https://patchblox.com/security/data/fix/linux/alsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-minimal amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl-minimal ol 8 | 0:7.61.1-22.el8_6.3 | [ELSA-2022-5313](https://patchblox.com/security/data/fix/linux/elsa-2022-5313.md) | Jun 30, 2022 | | Linux | libcurl-minimal ol 9 | 0:7.76.1-14.el9_0.4 | [ELSA-2022-5245](https://patchblox.com/security/data/fix/linux/elsa-2022-5245.md) | Jun 30, 2022 | | Linux | libcurl-minimal-debuginfo amzn 2023 | 7.87.0-2.amzn2023.0.2 | [ALAS2023-2023-083](https://patchblox.com/security/data/fix/linux/alas2023-2023-083.md) | Feb 17, 2023 | | Linux | libcurl3-gnutls Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.17 | [libcurl3-gnutls 7.58.0-2ubuntu3.17](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-gnutls-7.58.0-2ubuntu3.17.md) | Apr 26, 2022 | | Linux | libcurl3-gnutls Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.10 | [libcurl3-gnutls 7.68.0-1ubuntu2.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-gnutls-7.68.0-1ubuntu2.10.md) | Apr 26, 2022 | | Linux | libcurl3-gnutls Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.1 | [libcurl3-gnutls 7.81.0-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl3-gnutls-7.81.0-1ubuntu1.1.md) | Apr 26, 2022 | | Linux | libcurl3-nss Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.17 | [libcurl3-nss 7.58.0-2ubuntu3.17](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-nss-7.58.0-2ubuntu3.17.md) | Apr 26, 2022 | | Linux | libcurl3-nss Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.10 | [libcurl3-nss 7.68.0-1ubuntu2.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-nss-7.68.0-1ubuntu2.10.md) | Apr 26, 2022 | | Linux | libcurl3-nss Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.1 | [libcurl3-nss 7.81.0-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl3-nss-7.81.0-1ubuntu1.1.md) | Apr 26, 2022 | | Linux | libcurl4 Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.17 | [libcurl4 7.58.0-2ubuntu3.17](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl4-7.58.0-2ubuntu3.17.md) | Apr 26, 2022 | | Linux | libcurl4 Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.10 | [libcurl4 7.68.0-1ubuntu2.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl4-7.68.0-1ubuntu2.10.md) | Apr 26, 2022 | | Linux | libcurl4 Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.1 | [libcurl4 7.81.0-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl4-7.81.0-1ubuntu1.1.md) | Apr 26, 2022 | --- Data as of 2026-11-08T13:06:02Z UTC. 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