CVE-2026-8296

MEDIUMPre-NVD 5.65.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 90% 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).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting Payload via artifacts.

CVSS v3
5.6
EG Score
5.6(medium)
EPSS
9.8%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 19, 2026
No patch confirmed yet.
generic

Security Advisory 2026-05 | Octopus Deploy Security Advisories

https://advisories.octopus.com/post/2026/sa2026-05

Vendor Advisories for CVE-2026-8296(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 24× in last 7d / 53× 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.

  1. 2026-07-06 17:01 UTCEG score recompute
  2. 2026-07-06 17:01 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 16:40 UTCEG score recompute
  8. 2026-07-05 16:40 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 16:20 UTCEG score recompute
  12. 2026-07-04 16:19 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 15:59 UTCEG score recompute
  16. 2026-07-03 15:59 UTCGHSA enrichment
  17. 2026-07-02 15:36 UTCEG score recompute
  18. 2026-07-02 15:36 UTCGHSA enrichment
  19. 2026-07-01 15:16 UTCEG score recompute
  20. 2026-07-01 15:15 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 14:56 UTCEG score recompute
  24. 2026-06-30 14:56 UTCGHSA enrichment
  25. 2026-06-29 14:36 UTCEG score recompute
Show 28 more
  1. 2026-06-29 14:36 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-28 14:17 UTCEG score recompute
  4. 2026-06-28 14:17 UTCGHSA enrichment
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 13:57 UTCEG score recompute
  8. 2026-06-27 13:56 UTCGHSA enrichment
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-26 13:36 UTCEG score recompute
  11. 2026-06-26 13:36 UTCGHSA enrichment
  12. 2026-06-25 13:50 UTCEPSS rescore
  13. 2026-06-25 13:15 UTCEG score recompute
  14. 2026-06-25 13:15 UTCGHSA enrichment
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-24 12:55 UTCEG score recompute
  17. 2026-06-24 12:55 UTCGHSA enrichment
  18. 2026-06-23 21:33 UTCEPSS rescore
  19. 2026-06-23 12:33 UTCEG score recompute
  20. 2026-06-23 12:33 UTCGHSA enrichment
  21. 2026-06-22 12:10 UTCEG score recompute
  22. 2026-06-22 12:09 UTCGHSA enrichment
  23. 2026-06-21 11:49 UTCEG score recompute
  24. 2026-06-21 11:49 UTCGHSA enrichment
  25. 2026-06-20 11:22 UTCEG score recompute
  26. 2026-06-20 11:22 UTCGHSA enrichment
  27. 2026-06-19 11:00 UTCEG score recompute
  28. 2026-06-19 10:58 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8296?
CVE-2026-8296 is a medium vulnerability published on June 19, 2026. In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting Payload via artifacts.
When was CVE-2026-8296 disclosed?
CVE-2026-8296 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8296 actively exploited?
CVE-2026-8296 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8296?
CVE-2026-8296 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2026-8296?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8296, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8296

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