How severe is CVE-2026-31881?

CVE-2026-31881 has a CVSS 3.x base score of 7.7, 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 low.

Is CVE-2026-31881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-31881?

CVE-2026-31881 affects Runtipi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-31881?

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-2026-31881 have an EU (EUVD) identifier?

Yes. CVE-2026-31881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11294.

When was CVE-2026-31881 published?

CVE-2026-31881 was published on 2026-03-11 and last updated on 2026-06-17.

CVE-2026-31881

CVE-2026-31881 is a high-severity vulnerability in Runtipi with a CVSS 3.x base score of 7.7. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11294
Weakness: CWE-306
Affected product: Runtipi
Published: 2026-03-11
Last modified: 2026-06-17

Description

Runtipi is a personal homeserver orchestrator. Prior to 4.8.0, an unauthenticated attacker can reset the operator (admin) password when a password-reset request is active, resulting in full account takeover. The endpoint POST /api/auth/reset-password is exposed without authentication/authorization checks. During the 15-minute reset window, any remote user can set a new operator password and log in as admin. This vulnerability is fixed in 4.8.0.

Frequently asked questions

What is CVE-2026-31881?: Runtipi is a personal homeserver orchestrator. Prior to 4.8.0, an unauthenticated attacker can reset the operator (admin) password when a password-reset request is active, resulting in full account takeover. The endpoint POST /api/auth/reset-password is exposed without authentication/authorization checks. During the 15-minute reset window, any remote user can set a new operator password and log in as admin. This vulnerability is fixed in 4.8.0.
How severe is CVE-2026-31881?: CVE-2026-31881 has a CVSS 3.x base score of 7.7, 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 low.
Is CVE-2026-31881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-31881?: CVE-2026-31881 affects Runtipi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-31881?: 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-2026-31881 have an EU (EUVD) identifier?: Yes. CVE-2026-31881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11294.
When was CVE-2026-31881 published?: CVE-2026-31881 was published on 2026-03-11 and last updated on 2026-06-17.

References

https://github.com/runtipi/runtipi/security/advisories/GHSA-96fm-whrc-cwg3

Affected products (1)

cpe:2.3:a:runtipi:runtipi:*:*:*:*:*:*:*:*

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