# CVE-2022-26562: kopano-archiver: An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core <= v11.0.2.51 contains an issue which allows attackers...

CVE-2022-26562 is fixed in 23 products on 1 platform, first by kopano-archiver 8.5.5-0ubuntu1+esm1, released April 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-26562
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0215
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 1, 2022

## Description

An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core <= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa >= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kopano-archiver Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-archiver 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-archiver-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-archiver Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-archiver 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-archiver-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-archiver Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-archiver 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-archiver-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-backup Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-backup 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-backup-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-backup Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-backup 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-backup-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-backup Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-backup 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-backup-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-common Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-common 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-common-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-common Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-common 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-common-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-common Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-common 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-common-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-contacts Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-contacts 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-contacts-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-contacts Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-contacts 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-contacts-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-contacts Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-contacts 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-contacts-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-core Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-core 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-core-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-core Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-core 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-core-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-core Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-core 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-core-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-dagent Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-dagent 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-dagent-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-dagent Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-dagent 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-dagent-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-dagent Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-dagent 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-dagent-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-gateway Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-gateway 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-gateway-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-gateway Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-gateway 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-gateway-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-gateway Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-gateway 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-gateway-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-ical Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-ical 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-ical-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-ical Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-ical 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-ical-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-ical Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-ical 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-ical-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-l10n Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-l10n 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-l10n-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-l10n Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-l10n 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-l10n-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-l10n Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-l10n 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-l10n-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-libs Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-libs 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-libs-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-libs Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-libs 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-libs-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-libs Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-libs 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-libs-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-monitor Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-monitor 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-monitor-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-monitor Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-monitor 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-monitor-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-monitor Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-monitor 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-monitor-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-presence Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-presence 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-presence-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-presence Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-presence 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-presence-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-presence Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-presence 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-presence-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-search Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-search 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-search-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-search Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-search 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-search-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-search Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-search 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-search-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-server Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-server 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-server-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-server Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-server 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-server-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-server Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-server 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-server-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-spamd Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-spamd 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-spamd-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-spamd Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-spamd 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-spamd-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-spooler Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-spooler 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-spooler-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-spooler Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-spooler 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-spooler-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-spooler Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-spooler 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-spooler-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | kopano-utils Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [kopano-utils 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kopano-utils-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | kopano-utils Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [kopano-utils 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kopano-utils-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | kopano-utils Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [kopano-utils 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-kopano-utils-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | php-mapi Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [php-mapi 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-php-mapi-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | php-mapi Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [php-mapi 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-php-mapi-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | php-mapi Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [php-mapi 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-php-mapi-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | php7.1-mapi Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [php7.1-mapi 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-php7.1-mapi-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | python-kopano Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [python-kopano 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-kopano-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | python-mapi Ubuntu 18.04.6 LTS (bionic) | 8.5.5-0ubuntu1+esm1 | [python-mapi 8.5.5-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-mapi-8.5.5-0ubuntu1-esm1.md) | Apr 1, 2022 |
| Linux | python3-kopano Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [python3-kopano 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-kopano-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | python3-kopano Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [python3-kopano 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-kopano-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |
| Linux | python3-mapi Ubuntu 20.04 LTS (focal) | 8.7.0-7ubuntu1.1 | [python3-mapi 8.7.0-7ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-mapi-8.7.0-7ubuntu1.1.md) | Apr 1, 2022 |
| Linux | python3-mapi Ubuntu 22.04.1 LTS (jammy) | 8.7.0-7.1ubuntu10.1 | [python3-mapi 8.7.0-7.1ubuntu10.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-mapi-8.7.0-7.1ubuntu10.1.md) | Apr 1, 2022 |

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Data as of 2026-11-08T13:06:02Z 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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