How severe is CVE-2026-23795?

CVE-2026-23795 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-23795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23795?

CVE-2026-23795 affects Apache Syncope. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23795?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-23795 have an EU (EUVD) identifier?

Yes. CVE-2026-23795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5267.

When was CVE-2026-23795 published?

CVE-2026-23795 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-23795

CVE-2026-23795 is a medium-severity vulnerability in Apache Syncope with a CVSS 3.x base score of 4.9. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5267
Weakness: CWE-611
Affected product: Apache Syncope
Published: 2026-02-03
Last modified: 2026-06-17

Description

Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs. This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3. Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

Frequently asked questions

What is CVE-2026-23795?: Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs. This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3. Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.
How severe is CVE-2026-23795?: CVE-2026-23795 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-23795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23795?: CVE-2026-23795 affects Apache Syncope. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23795?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-23795 have an EU (EUVD) identifier?: Yes. CVE-2026-23795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5267.
When was CVE-2026-23795 published?: CVE-2026-23795 was published on 2026-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*

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