How severe is CVE-2026-28510?

CVE-2026-28510 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-28510 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.

What products are affected by CVE-2026-28510?

CVE-2026-28510 affects Elabftw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28510?

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

Does CVE-2026-28510 have an EU (EUVD) identifier?

Yes. CVE-2026-28510 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27311.

When was CVE-2026-28510 published?

CVE-2026-28510 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-28510

CVE-2026-28510 is a medium-severity vulnerability in Elabftw with a CVSS 3.x base score of 5.9. 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-302.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27311
Weakness: CWE-302
Affected product: Elabftw
Published: 2026-05-05
Last modified: 2026-06-17

Description

eLabFTW is an open source electronic lab notebook. In elabftw versions through 5.4.1, the login flow did not reliably preserve the multi-factor authentication state across authentication steps. Under certain conditions, an attacker with valid primary credentials could complete authentication with an attacker-controlled TOTP secret and bypass the additional factor. This could result in unauthorized account access. This issue is fixed in version 5.4.2.

Frequently asked questions

What is CVE-2026-28510?: eLabFTW is an open source electronic lab notebook. In elabftw versions through 5.4.1, the login flow did not reliably preserve the multi-factor authentication state across authentication steps. Under certain conditions, an attacker with valid primary credentials could complete authentication with an attacker-controlled TOTP secret and bypass the additional factor. This could result in unauthorized account access. This issue is fixed in version 5.4.2.
How severe is CVE-2026-28510?: CVE-2026-28510 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-28510 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.
What products are affected by CVE-2026-28510?: CVE-2026-28510 affects Elabftw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28510?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28510 have an EU (EUVD) identifier?: Yes. CVE-2026-28510 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27311.
When was CVE-2026-28510 published?: CVE-2026-28510 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:elabftw:elabftw:*:*:*:*:*:*:*:*

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