Vulnerability in Robiningelbrecht Dreeve
CVE-2026-121545
Dreeve before 5.8.0 contains a missing authentication vulnerability in StravaWebhookRequestHandler::handleEvent that allows unauthenticated attackers to forge Strava webhook events without signature, verify-token or owner_id checks. Attackers can send forged delete events with a known public Strava activity id to the webhook URL, causing permanent deletion of imported activities and their streams.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/dreeveapp/dreeve/issues/2935 (issue-tracking)
- github.com/dreeveapp/dreeve (product)
- github.com/dreeveapp/dreeve/commit/1e88f7664a95ecbffd299195f4730a60fcd3181a (patch)
- github.com/dreeveapp/dreeve/blob/v5.7.0/src/Controller/Strava/StravaWebhookRequ… (technical-description)
- github.com/dreeveapp/dreeve/blob/v5.7.0/src/Console/Strava/ProcessStravaWebhook… (technical-description)
- github.com/dreeveapp/dreeve/pull/2936 (issue-tracking, technical-description, patch)
- www.vulncheck.com/advisories/dreeve-before-5.8.0-missing-authentication-in-stra… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121545?
- CVE-2026-121545 is a medium-severity vulnerability in Robiningelbrecht Dreeve, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2026-11-03.
- How severe is CVE-2026-121545?
- Medium severity. CVSS v3 base score is 6.5 out of 10.