What is CVE-2026-60007?

CVE-2026-60007 is a high-severity vulnerability in Eclipse Milo, classified under Observable Response Discrepancy. CVSS score: 7.4/10. Published 2026-08-04.

How severe is CVE-2026-60007?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Eclipse Milo

CVE-2026-60007

In Eclipse Milo versions 0.6.0 through 1.1.4, username-token processing returns distinguishable errors for invalid RSA PKCS#1 v1.5 padding and other authentication failures, allowing an on-path attacker who captures a victim's `Basic128Rsa15`-encrypted username token to use repeated unauthenticated `ActivateSession` requests as a padding oracle, recover the victim's password, and authenticate with the recovered credentials.

Published 2026-08-04 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.2th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Eclipse Milo
Eclipse Foundation Milo — versions 0.6.0

Weakness classification (CWE)

CWE-204 — Observable Response Discrepancy

References

github.com/eclipse-milo/milo/commit/db59fae993a3a1bc66fffc8a2796d444b40285fb (Patch)
gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598 (Issue Tracking, Vendor Advisory)
gitlab.eclipse.org/security/cve-assignment/-/work_items/183 (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-60007?: CVE-2026-60007 is a high-severity vulnerability in Eclipse Milo, classified under Observable Response Discrepancy. CVSS score: 7.4/10. Published 2026-08-04.
How severe is CVE-2026-60007?: High severity. CVSS v3 base score is 7.4 out of 10.