# xul-ext-lightning 1:91.7.0+build2-0ubuntu0.18.04.1: xul-ext-lightning 1:91.7.0+build2-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

xul-ext-lightning 1:91.7.0+build2-0ubuntu0.18.04.1, released March 8, 2022, fixes 13 CVEs in xul-ext-lightning. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-91.7.0-build2-0ubuntu0.18.04.1
- Platform: Linux
- Released: Mar 8, 2022
- Priority: Urgent (Closes CVE-2022-26384, rated Critical)
- CVEs: 13, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [xul-ext-lightning](https://patchblox.com/security/data/product/linux/xul-ext-lightning.md) | Ubuntu 18.04.6 LTS (bionic) | 1:91.7.0+build2-0ubuntu0.18.04.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-26384](https://patchblox.com/security/data/cve/CVE-2022-26384.md) | Urgent | Mozilla Thunderbird and 4 others: Protection Mechanism Failure | 9.8 | 0.0097 |  |
| [CVE-2022-26381](https://patchblox.com/security/data/cve/CVE-2022-26381.md) | Urgent | Mozilla Thunderbird and 4 others: Use After Free | 9.8 | 0.0087 |  |
| [CVE-2022-26383](https://patchblox.com/security/data/cve/CVE-2022-26383.md) | Urgent | Mozilla Thunderbird and 4 others: User Interface (UI) Misrepresentation of Critical Information | 9.8 | 0.0073 |  |
| [CVE-2022-26386](https://patchblox.com/security/data/cve/CVE-2022-26386.md) | Urgent | firefox: ELSA-2022-0818: firefox security update (CRITICAL) | 9.8 | 0.0071 |  |
| [CVE-2022-26387](https://patchblox.com/security/data/cve/CVE-2022-26387.md) | Urgent | Mozilla Thunderbird and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition | 9.8 | 0.0066 |  |
| [CVE-2022-22756](https://patchblox.com/security/data/cve/CVE-2022-22756.md) | High | Mozilla Firefox ESR and 4 others: Improper Control of Generation of Code ('Code Injection') | 9.6 | 0.0096 |  |
| [CVE-2022-22760](https://patchblox.com/security/data/cve/CVE-2022-22760.md) | High | Mozilla Firefox ESR and 4 others: Generation of Error Message Containing Sensitive Information | 9.6 | 0.0081 |  |
| [CVE-2022-22759](https://patchblox.com/security/data/cve/CVE-2022-22759.md) | High | Mozilla Firefox ESR and 4 others: Protection Mechanism Failure | 9.6 | 0.0079 |  |
| [CVE-2022-22761](https://patchblox.com/security/data/cve/CVE-2022-22761.md) | High | Mozilla Firefox ESR and 4 others: Protection Mechanism Failure | 9.6 | 0.0079 |  |
| [CVE-2022-22764](https://patchblox.com/security/data/cve/CVE-2022-22764.md) | High | Mozilla Firefox ESR and 4 others: Out-of-bounds Write | 9.6 | 0.0075 |  |
| [CVE-2022-0566](https://patchblox.com/security/data/cve/CVE-2022-0566.md) | High | Mozilla Thunderbird and 1 other: Out-of-bounds Write | 9.8 | 0.0074 |  |
| [CVE-2022-22754](https://patchblox.com/security/data/cve/CVE-2022-22754.md) | High | Mozilla Firefox ESR and 4 others: Incorrect Authorization | 9.6 | 0.0067 |  |
| [CVE-2022-22763](https://patchblox.com/security/data/cve/CVE-2022-22763.md) | High | Mozilla Firefox ESR and 3 others: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | 9.6 | 0.0060 |  |

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Data as of 2026-11-13T14:02:24Z 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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