CVE-2026-15978

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic

Breaking SGLang's Trust Boundaries | Thoughts | Apoorv Dayal

https://thoughts.apoorvdayal.com/posts/sglang-disclosures/

Vendor Advisories for CVE-2026-15978(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 19× in last 7d / 91× 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 179 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15978?
CVE-2026-15978 is a high vulnerability published on July 30, 2026. SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.
When was CVE-2026-15978 disclosed?
CVE-2026-15978 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15978 actively exploited?
CVE-2026-15978 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 63.0% of all scored CVEs.
What is the CVSS score of CVE-2026-15978?
CVE-2026-15978 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15978?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15978, 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

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