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: 0.3%, top 76% 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
5.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.6Exploit: None knownExposed: 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)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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 computed
Severity56% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
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 4× in last 7d / 51× 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.

Showing the most recent 100 of 165 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-08 22:01 UTCEPSS rescore
  3. 2026-09-06 13:48 UTCEPSS rescore
  4. 2026-09-05 15:31 UTCEPSS rescore
  5. 2026-09-04 05:07 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-09-01 04:40 UTCEPSS rescore
  9. 2026-08-30 20:53 UTCEG score recompute
  10. 2026-08-30 20:53 UTCGHSA enrichment
  11. 2026-08-30 19:18 UTCEPSS rescore
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-28 21:42 UTCEPSS rescore
  15. 2026-08-27 14:25 UTCEPSS rescore
  16. 2026-08-26 14:47 UTCEPSS rescore
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-25 00:46 UTCEG score recompute
  19. 2026-08-25 00:46 UTCGHSA enrichment
  20. 2026-08-24 14:18 UTCEPSS rescore
  21. 2026-08-24 00:23 UTCEG score recompute
  22. 2026-08-24 00:23 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-23 00:02 UTCEG score recompute
  25. 2026-08-23 00:02 UTCGHSA enrichment
Show 75 more
  1. 2026-08-21 23:49 UTCEPSS rescore
  2. 2026-08-21 08:27 UTCEG score recompute
  3. 2026-08-21 08:27 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 08:07 UTCEG score recompute
  6. 2026-08-20 08:07 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 07:21 UTCEG score recompute
  9. 2026-08-19 07:21 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-16 21:47 UTCEG score recompute
  14. 2026-08-16 21:47 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 02:15 UTCEPSS rescore
  18. 2026-08-15 21:27 UTCEG score recompute
  19. 2026-08-15 21:27 UTCGHSA enrichment
  20. 2026-08-15 01:31 UTCEPSS rescore
  21. 2026-08-14 21:06 UTCEG score recompute
  22. 2026-08-14 21:06 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-13 20:46 UTCGHSA enrichment
  25. 2026-08-12 20:22 UTCEG score recompute
  26. 2026-08-12 20:22 UTCGHSA enrichment
  27. 2026-08-12 13:51 UTCEPSS rescore
  28. 2026-08-11 20:02 UTCEG score recompute
  29. 2026-08-11 20:02 UTCGHSA enrichment
  30. 2026-08-11 13:43 UTCEPSS rescore
  31. 2026-08-11 00:00 UTCEPSS rescore
  32. 2026-08-10 19:39 UTCGHSA enrichment
  33. 2026-08-09 19:19 UTCEG score recompute
  34. 2026-08-09 19:19 UTCGHSA enrichment
  35. 2026-08-09 13:47 UTCEPSS rescore
  36. 2026-08-08 19:00 UTCGHSA enrichment
  37. 2026-08-07 18:40 UTCEG score recompute
  38. 2026-08-07 18:40 UTCGHSA enrichment
  39. 2026-08-06 18:19 UTCEG score recompute
  40. 2026-08-06 18:19 UTCGHSA enrichment
  41. 2026-08-06 13:47 UTCEPSS rescore
  42. 2026-08-05 19:17 UTCEPSS rescore
  43. 2026-08-05 19:17 UTCEPSS rescore
  44. 2026-08-05 17:59 UTCGHSA enrichment
  45. 2026-08-04 15:22 UTCEG score recompute
  46. 2026-08-04 15:22 UTCGHSA enrichment
  47. 2026-08-04 15:10 UTCEPSS rescore
  48. 2026-08-04 10:39 UTCEPSS rescore
  49. 2026-08-03 10:36 UTCEPSS rescore
  50. 2026-08-03 08:43 UTCGHSA enrichment
  51. 2026-08-02 05:25 UTCEG score recompute
  52. 2026-08-02 05:25 UTCGHSA enrichment
  53. 2026-08-02 02:27 UTCEPSS rescore
  54. 2026-08-01 05:05 UTCEG score recompute
  55. 2026-08-01 05:05 UTCGHSA enrichment
  56. 2026-08-01 04:16 UTCEPSS rescore
  57. 2026-07-31 03:50 UTCEG score recompute
  58. 2026-07-31 03:49 UTCGHSA enrichment
  59. 2026-07-30 16:28 UTCEPSS rescore
  60. 2026-07-30 03:02 UTCEG score recompute
  61. 2026-07-30 03:02 UTCGHSA enrichment
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-29 01:40 UTCEG score recompute
  64. 2026-07-29 01:40 UTCGHSA enrichment
  65. 2026-07-28 15:37 UTCEPSS rescore
  66. 2026-07-27 18:05 UTCEG score recompute
  67. 2026-07-27 18:05 UTCGHSA enrichment
  68. 2026-07-27 14:14 UTCEPSS rescore
  69. 2026-07-26 17:02 UTCEG score recompute
  70. 2026-07-26 17:02 UTCGHSA enrichment
  71. 2026-07-26 14:54 UTCEPSS rescore
  72. 2026-07-25 14:18 UTCEPSS rescore
  73. 2026-07-24 14:18 UTCEPSS rescore
  74. 2026-07-23 14:18 UTCEPSS rescore
  75. 2026-07-23 03:23 UTCEG score recompute

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 0% probability of exploitation in the next 30 days, which ranks it in the top 75.7% of all scored CVEs.
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

Explore →

Is Your Infrastructure Affected by CVE-2026-8296?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs