Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Microsoft Identity Web versions 3.2.0 before 3.8.2 and Microsoft.Identity.Abstractions versions 7.1.0 before 9.0.0 can write client secrets or certificate details into service logs when logging is set to the information level. An attacker who can read those logs can obtain the exposed credentials. Upgrade Microsoft.Identity.Web to 3.8.2 or Microsoft.Identity.Abstractions to 9.0.0. Until then, restrict access to service logs and avoid Information-level logging for the Microsoft.Identity.Web namespace.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 4.7 | Medium | 3.1 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0010, the 1st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:22 UTC First seen by agentprime
- 31 Oct 2026, 15:22 UTC Confirmed by OSV