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CVE-2026-52783

OpenProject: Information Disclosure (cleartext storage of data) on localhost through memcached via Others "storage.<id>.httpx_access_token" leads to Sensitive Data Exposure PUBLISHED

Description (CNA)

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, OpenProject's Storages module writes the OneDrive/SharePoint userless OAuth access_token plaintext to Rails.cache under the deterministic key storage.<id>.httpx_access_token, repopulated continuously by an hourly cron and every userless-OAuth call site (see Write cadence). None of the three allowed cache backends (file_store, memcache, redis) encrypts at rest. An attacker with read access to the cache backend recovers the Azure-AD application-tier bearer with an anonymous get over the memcached binary protocol (or the equivalent against Redis). This vulnerability is fixed in 17.3.3 and 17.4.1.

Affected (CNA)

Vendor / productVersions
opf / openprojectaffected < 17.3.3; affected >= 17.4.0, < 17.4.1

CWE

CWE-313

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.