Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /api/redirect OAuth callback endpoint embeds the user-supplied code query parameter directly into an inline script block without proper escaping. A crafted request to /api/redirect with a malicious code value can break out of the script context and execute arbitrary JavaScript in the Activepieces origin when a logged-in user opens it. An unauthenticated attacker can access the victim's session tokens or make authenticated API calls on the victim's behalf. This issue is fixed in version 0.83.0.
CVE-2026-73084
This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EG Risk
- 28(Track)EG Risk 28/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 14%
- KEV
- Not listed
Published
August 11, 2026
Last Modified
August 12, 2026
Advisory Details (3)
Auto-updated Aug 11, 20260.83.0
Patch available: activepieces/activepieces 0.83.0
https://github.com/activepieces/activepieces/releases/tag/0.83.0commit 8be4c8d5e6a7 (activepieces/activepieces)
Patch available: activepieces/activepieces 0.83.1 (contains commit 8be4c8d5e6a7)
https://github.com/activepieces/activepieces/commit/8be4c8d5e6a79ccbaa74815027432a3c8c311385Reflected Cross-Site Scripting in OAuth Redirect Endpoint · Advisory · activepieces/activepieces · GitHub
https://github.com/activepieces/activepieces/security/advisories/GHSA-hc39-cm5m-q8g7Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 39× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 09:32 UTCEG score recompute
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-28 11:07 UTCEG score recompute
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-27 10:30 UTCEG score recompute
- 2026-08-26 14:47 UTCEPSS rescore
- 2026-08-25 15:08 UTCEG score recompute
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-24 17:26 UTCEG score recompute
- 2026-08-23 19:36 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 00:15 UTCEG score recompute
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 02:33 UTCEG score recompute
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 04:49 UTCEG score recompute
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 07:08 UTCEG score recompute
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 09:27 UTCEG score recompute
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-17 11:46 UTCEG score recompute
- 2026-08-16 14:56 UTCEPSS rescore
Show 14 moreShow fewer
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 14:06 UTCEG score recompute
- 2026-08-16 02:15 UTCEPSS rescore
- 2026-08-15 16:26 UTCEG score recompute
- 2026-08-15 01:31 UTCEPSS rescore
- 2026-08-14 18:45 UTCEG score recompute
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-12 23:22 UTCEG score recompute
- 2026-08-12 22:21 UTCEG score recompute
- 2026-08-12 15:24 UTCEG score recompute
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-11 17:43 UTCEG score recompute
- 2026-08-11 16:45 UTCEG score recompute
- 2026-08-11 16:45 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2026-73084?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-73084
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