CVE-2026-103880
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password…
- Risk score
- 58/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 2 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.…
- Affected
- See advisory
- Fix
- Upgrade the product to 2.1.9 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.5 high
- Remotely exploitable without logging in
References
Original description
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
Last activity 2 Oct 2026. Patch Forecast updates every hour.