How severe is CVE-2026-56355?

CVE-2026-56355 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-56355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-56355?

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

Does CVE-2026-56355 have an EU (EUVD) identifier?

Yes. CVE-2026-56355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38135.

When was CVE-2026-56355 published?

CVE-2026-56355 was published on 2026-06-20 and last updated on 2026-06-22.

CVE-2026-56355

CVE-2026-56355 is a low-severity vulnerability with a CVSS 3.x base score of 3.7. 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-696.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38135
Weakness: CWE-696
Published: 2026-06-20
Last modified: 2026-06-22

Description

GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.

Frequently asked questions

What is CVE-2026-56355?: GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.
How severe is CVE-2026-56355?: CVE-2026-56355 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-56355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-56355?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-56355 have an EU (EUVD) identifier?: Yes. CVE-2026-56355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38135.
When was CVE-2026-56355 published?: CVE-2026-56355 was published on 2026-06-20 and last updated on 2026-06-22.

References

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