# CVE-2021-38165: lynx: Lynx is a text-based Web browser

CVE-2021-38165 is fixed in 4 products on 1 platform, first by lynx 2.8.9dev16-3ubuntu0.1~esm1, released August 7, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-38165
- Priority: Routine
- CVSS: 5.3 (Moderate)
- EPSS: 0.0394
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 7, 2021

## Description

Lynx is a text-based Web browser. Lynx does not display any images, but it does support frames, tables, and most other HTML tags.  Security Fix(es):  * lynx: Disclosure of HTTP authentication credentials via SNI data (CVE-2021-38165)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | lynx RHEL 8 | 0:2.8.9-4.el8 | [RHSA-2022:2129](https://patchblox.com/security/data/fix/linux/rhsa-2022-2129.md) | May 10, 2022 |
| Linux | lynx Ubuntu 18.04.6 LTS (bionic) | 2.8.9dev16-3ubuntu0.1~esm1 | [lynx 2.8.9dev16-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-lynx-2.8.9dev16-3ubuntu0.1-esm1.md) | Aug 7, 2021 |
| Linux | lynx Ubuntu 20.04 LTS (focal) | 2.9.0dev.5-1ubuntu0.1~esm1 | [lynx 2.9.0dev.5-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-lynx-2.9.0dev.5-1ubuntu0.1-esm1.md) | Aug 7, 2021 |
| Linux | lynx almalinux 8 | 2.8.9-4.el8 | [ALSA-2022:2129](https://patchblox.com/security/data/fix/linux/alsa-2022-2129.md) | May 10, 2022 |
| Linux | lynx amzn 2023 | 2.8.9-13.amzn2023.0.3 | [ALAS2023-2024-535](https://patchblox.com/security/data/fix/linux/alas2023-2024-535.md) | Feb 15, 2024 |
| Linux | lynx rocky 8 | 0:2.8.9-4.el8 | [RLSA-2022:2129](https://patchblox.com/security/data/fix/linux/rlsa-2022-2129.md) | Jun 28, 2026 |
| Linux | lynx-common Ubuntu 18.04.6 LTS (bionic) | 2.8.9dev16-3ubuntu0.1~esm1 | [lynx-common 2.8.9dev16-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-lynx-common-2.8.9dev16-3ubuntu0.1-esm1.md) | Aug 7, 2021 |
| Linux | lynx-common Ubuntu 20.04 LTS (focal) | 2.9.0dev.5-1ubuntu0.1~esm1 | [lynx-common 2.9.0dev.5-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-lynx-common-2.9.0dev.5-1ubuntu0.1-esm1.md) | Aug 7, 2021 |
| Linux | lynx-debuginfo amzn 2023 | 2.8.9-13.amzn2023.0.3 | [ALAS2023-2024-535](https://patchblox.com/security/data/fix/linux/alas2023-2024-535.md) | Feb 15, 2024 |
| Linux | lynx-debugsource amzn 2023 | 2.8.9-13.amzn2023.0.3 | [ALAS2023-2024-535](https://patchblox.com/security/data/fix/linux/alas2023-2024-535.md) | Feb 15, 2024 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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