Apache Roller OAuth 1.0a Authorization Bypass Allows Token Theft
Incorrect authorization in Apache Roller 6.1.5 OAuth 1.0a endpoint lets an unauthenticated attacker obtain an access token for any user. CVSS 9.0 critical.
- Vendor
- Apache Software Foundation
- Product
- Apache Roller
- CVSS
- 9.0
- EPSS (exploit probability)
- 0.4%
- Status
- patched
- Published
Is CVE-2026-82378 being exploited?
Not on any exploited-vulnerability catalog we track. CVE-2026-82378 was not on the CISA, ENISA or CIRCL exploited catalogs as of our 2026-11-13 snapshot. That can change quickly; check the write-up below for the latest reporting.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 0.4% (scored October 14, 2026).
- CISA KEV[ — ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2026-82378 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
CVE-2026-82378 is an incorrect authorization vulnerability in the OAuth 1.0a authorization endpoint of Apache Roller 6.1.5. An unauthenticated attacker who obtains an outstanding request token for a site-wide OAuth consumer can exploit the authorization endpoint to receive an access token for any user, bypassing the user-approval step that is supposed to gate that exchange.
What to do: Upgrade Apache Roller to a patched version. See the NVD record and the Apache Roller GitHub fix.
Other Apache Software Foundation CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-90910 Apache Answer Missing Auth on Reaction APIwrite-up | [ CRITICAL ] | 9.8 | 0.5% | — |
| CVE-2026-82384 Apache Roller XML-RPC Deserialization Allows Unauthenticated RCEwrite-up | [ CRITICAL ] | 9.8 | 1.0% | — |
| CVE-2026-82383 Apache Roller Missing Auth Lets Attackers Change Site Configurationwrite-up | [ HIGH ] | 8.2 | 0.5% | — |
| CVE-2026-82379 Apache Roller WSSE Auth Bypass via Digest Replaywrite-up | [ HIGH ] | 7.7 | 0.4% | — |
