How severe is CVE-2026-41720?

CVE-2026-41720 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-41720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41720?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41720 have an EU (EUVD) identifier?

Yes. CVE-2026-41720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35324.

When was CVE-2026-41720 published?

CVE-2026-41720 was published on 2026-06-09 and last updated on 2026-06-23.

CVE-2026-41720

CVE-2026-41720 is a high-severity vulnerability with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35324
Weakness: CWE-287
Published: 2026-06-09
Last modified: 2026-06-23

Description

Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password. Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.

Frequently asked questions

What is CVE-2026-41720?: Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password. Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.
How severe is CVE-2026-41720?: CVE-2026-41720 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-41720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-41720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41720 have an EU (EUVD) identifier?: Yes. CVE-2026-41720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35324.
When was CVE-2026-41720 published?: CVE-2026-41720 was published on 2026-06-09 and last updated on 2026-06-23.

References

https://spring.io/security/cve-2026-41720

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