How severe is CVE-2026-44501?

CVE-2026-44501 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-44501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44501?

CVE-2026-44501 affects Datahub. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44501?

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

Does CVE-2026-44501 have an EU (EUVD) identifier?

Yes. CVE-2026-44501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30321.

When was CVE-2026-44501 published?

CVE-2026-44501 was published on 2026-05-14 and last updated on 2026-06-17.

CVE-2026-44501

CVE-2026-44501 is a medium-severity vulnerability in Datahub with a CVSS 3.x base score of 4.3. 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-502.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30321
Weakness: CWE-502
Affected product: Datahub
Published: 2026-05-14
Last modified: 2026-06-17

Description

DataHub is an open-source metadata platform. Prior to 1.5.0.3, The DataHub frontend (datahub-frontend-react) deserializes attacker-controlled Java objects from the REDIRECT_URL HTTP cookie during the OIDC callback flow, with no integrity protection (no HMAC, no encryption). This is a Deserialization of Untrusted Data vulnerability (CWE-502) affecting the GET /callback/oidc endpoint. Successful exploitation requires a valid user account in the configured OIDC identity provider This vulnerability is fixed in 1.5.0.3.

Frequently asked questions

What is CVE-2026-44501?: DataHub is an open-source metadata platform. Prior to 1.5.0.3, The DataHub frontend (datahub-frontend-react) deserializes attacker-controlled Java objects from the REDIRECT_URL HTTP cookie during the OIDC callback flow, with no integrity protection (no HMAC, no encryption). This is a Deserialization of Untrusted Data vulnerability (CWE-502) affecting the GET /callback/oidc endpoint. Successful exploitation requires a valid user account in the configured OIDC identity provider This vulnerability is fixed in 1.5.0.3.
How severe is CVE-2026-44501?: CVE-2026-44501 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-44501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44501?: CVE-2026-44501 affects Datahub. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44501 have an EU (EUVD) identifier?: Yes. CVE-2026-44501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30321.
When was CVE-2026-44501 published?: CVE-2026-44501 was published on 2026-05-14 and last updated on 2026-06-17.

References

https://github.com/datahub-project/datahub/security/advisories/GHSA-rjf9-p49v-42c4

Affected products (1)

cpe:2.3:a:datahub:datahub:*:*:*:*:*:*:*:*

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