CVE-2020-26542 json
An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in…
published 2020-11-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19087
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.
Exploit prediction
1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
percona.com
/blog/2020/10/13/percona-distribution-for-mysql-pxc-variant-8-0-20-fixes-for-security-vulnerability-release-ro
release-notes, vendor-advisory
-
jira.percona.com
/browse/PS-7358
issue-tracking, permissions-required, vendor-advisory
-
jira.percona.com
/browse/PSMDB-726
issue-tracking, permissions-required, vendor-advisory
-
percona.com
/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html
release-notes, vendor-advisory
Sources
- CVE List CVE-2020-26542
- NVD CVE-2020-26542
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