CVE-2026-15978

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH 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(high)
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
22%
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 28× in last 7d / 86× 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. 2026-08-21 08:17 UTCEG score recompute
  2. 2026-08-21 08:17 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 20:01 UTCGHSA enrichment
  5. 2026-08-20 07:45 UTCGHSA enrichment
  6. 2026-08-19 19:28 UTCEG score recompute
  7. 2026-08-19 19:28 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 06:48 UTCGHSA enrichment
  10. 2026-08-18 18:27 UTCEG score recompute
  11. 2026-08-18 18:27 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 03:49 UTCGHSA enrichment
  14. 2026-08-17 15:33 UTCEG score recompute
  15. 2026-08-17 15:33 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 03:17 UTCGHSA enrichment
  18. 2026-08-16 15:01 UTCEG score recompute
  19. 2026-08-16 15:01 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 02:45 UTCEG score recompute
  22. 2026-08-16 02:45 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-15 14:29 UTCGHSA enrichment
  25. 2026-08-15 02:12 UTCEG score recompute
Show 61 more
  1. 2026-08-15 02:12 UTCGHSA enrichment
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 13:56 UTCGHSA enrichment
  4. 2026-08-14 01:40 UTCEG score recompute
  5. 2026-08-14 01:40 UTCGHSA enrichment
  6. 2026-08-13 22:00 UTCEPSS rescore
  7. 2026-08-13 13:23 UTCGHSA enrichment
  8. 2026-08-13 01:07 UTCEG score recompute
  9. 2026-08-13 01:07 UTCGHSA enrichment
  10. 2026-08-12 13:50 UTCEPSS rescore
  11. 2026-08-12 12:51 UTCGHSA enrichment
  12. 2026-08-12 00:34 UTCEG score recompute
  13. 2026-08-12 00:34 UTCGHSA enrichment
  14. 2026-08-11 13:42 UTCEPSS rescore
  15. 2026-08-11 12:18 UTCGHSA enrichment
  16. 2026-08-11 00:02 UTCEG score recompute
  17. 2026-08-11 00:02 UTCGHSA enrichment
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 11:45 UTCGHSA enrichment
  20. 2026-08-09 23:29 UTCEG score recompute
  21. 2026-08-09 23:29 UTCGHSA enrichment
  22. 2026-08-09 13:46 UTCEPSS rescore
  23. 2026-08-09 11:13 UTCGHSA enrichment
  24. 2026-08-08 22:57 UTCGHSA enrichment
  25. 2026-08-08 10:40 UTCGHSA enrichment
  26. 2026-08-07 22:24 UTCEG score recompute
  27. 2026-08-07 22:24 UTCGHSA enrichment
  28. 2026-08-07 10:08 UTCGHSA enrichment
  29. 2026-08-06 21:51 UTCEG score recompute
  30. 2026-08-06 21:51 UTCGHSA enrichment
  31. 2026-08-06 13:46 UTCEPSS rescore
  32. 2026-08-06 09:35 UTCGHSA enrichment
  33. 2026-08-05 21:19 UTCEG score recompute
  34. 2026-08-05 21:19 UTCGHSA enrichment
  35. 2026-08-05 19:17 UTCEPSS rescore
  36. 2026-08-05 09:03 UTCGHSA enrichment
  37. 2026-08-04 20:47 UTCEG score recompute
  38. 2026-08-04 20:46 UTCGHSA enrichment
  39. 2026-08-04 15:10 UTCEPSS rescore
  40. 2026-08-04 10:38 UTCEPSS rescore
  41. 2026-08-04 09:56 UTCGHSA enrichment
  42. 2026-08-03 21:02 UTCEG score recompute
  43. 2026-08-03 21:02 UTCGHSA enrichment
  44. 2026-08-03 10:35 UTCEPSS rescore
  45. 2026-08-03 08:46 UTCGHSA enrichment
  46. 2026-08-02 20:30 UTCGHSA enrichment
  47. 2026-08-02 08:14 UTCEG score recompute
  48. 2026-08-02 08:14 UTCGHSA enrichment
  49. 2026-08-02 02:26 UTCEPSS rescore
  50. 2026-08-01 19:57 UTCGHSA enrichment
  51. 2026-08-01 07:41 UTCEG score recompute
  52. 2026-08-01 07:41 UTCGHSA enrichment
  53. 2026-08-01 04:15 UTCEPSS rescore
  54. 2026-07-31 19:25 UTCEG score recompute
  55. 2026-07-31 19:25 UTCGHSA enrichment
  56. 2026-07-31 18:43 UTCEG score recompute▲ 7.50
  57. 2026-07-31 18:43 UTCGHSA enrichment
  58. 2026-07-31 18:43 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  59. 2026-07-30 19:29 UTCNVD update
  60. 2026-07-30 18:27 UTCEG score recompute
  61. 2026-07-30 18:25 UTCMITRE cvelistV5first tracked

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 78.0% 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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