CVE-2026-78155

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-23. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

August 23, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

tenant DB-owner to pod RCE via metrics-exporter superuser dblink with unpinned search_path (#3177) · Issues · OnGres Inc. / StackGres · GitLab

https://gitlab.com/ongresinc/stackgres/-/work_items/3177

Vendor Advisories for CVE-2026-78155(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 29× in last 7d / 29× 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. 2026-08-26 13:26 UTCGHSA enrichment
  2. 2026-08-26 09:09 UTCGHSA enrichment
  3. 2026-08-26 04:47 UTCGHSA enrichment
  4. 2026-08-26 00:31 UTCGHSA enrichment
  5. 2026-08-25 20:15 UTCGHSA enrichment
  6. 2026-08-25 15:59 UTCEG score recompute
  7. 2026-08-25 15:59 UTCGHSA enrichment
  8. 2026-08-25 13:49 UTCEPSS rescore
  9. 2026-08-25 11:43 UTCGHSA enrichment
  10. 2026-08-25 07:28 UTCGHSA enrichment
  11. 2026-08-25 03:12 UTCGHSA enrichment
  12. 2026-08-24 22:56 UTCGHSA enrichment
  13. 2026-08-24 18:40 UTCGHSA enrichment
  14. 2026-08-24 14:24 UTCEG score recompute
  15. 2026-08-24 14:24 UTCGHSA enrichment
  16. 2026-08-24 14:18 UTCEPSS rescore
  17. 2026-08-24 13:22 UTCEG score recompute
  18. 2026-08-24 13:22 UTCGHSA enrichment
  19. 2026-08-24 11:57 UTCEG score recompute
  20. 2026-08-24 11:57 UTCGHSA enrichment
  21. 2026-08-24 07:41 UTCGHSA enrichment
  22. 2026-08-24 03:25 UTCGHSA enrichment
  23. 2026-08-23 23:09 UTCGHSA enrichment
  24. 2026-08-23 18:53 UTCGHSA enrichment
  25. 2026-08-23 14:38 UTCEG score recompute
Show 4 more
  1. 2026-08-23 14:38 UTCGHSA enrichment
  2. 2026-08-23 10:22 UTCEG score recompute
  3. 2026-08-23 09:32 UTCEG score recompute
  4. 2026-08-23 09:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78155?
CVE-2026-78155 is a critical vulnerability published on August 23, 2026. privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges
When was CVE-2026-78155 disclosed?
CVE-2026-78155 was first published in the National Vulnerability Database on August 23, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78155 actively exploited?
CVE-2026-78155 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 81.0% of all scored CVEs.
What is the CVSS score of CVE-2026-78155?
CVE-2026-78155 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-78155?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78155, 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-2026-78155

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