CVE-2026-76977

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-08. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

SAP UI5 does not sufficiently validate the parent frame's origin against the configured allowlist. An unauthenticated attacker could host a malicious page to bypass framing restrictions. If an authenticated victim visits the attacker's page and interacts with it, the attacker could trick the victim into performing unintended actions, resulting in a low impact on integrity. There is no impact on confidentiality and availability.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

SAP Security Notes & News

https://url.sap/sapsecuritypatchday
generic
https://me.sap.com/notes/3783189

Vendor Advisories for CVE-2026-76977(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 / 37× 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. 2026-09-19 02:53 UTCEG score recompute
  2. 2026-09-19 02:53 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 04:26 UTCEG score recompute
  5. 2026-09-18 04:26 UTCGHSA enrichment
  6. 2026-09-17 05:58 UTCEG score recompute
  7. 2026-09-17 05:58 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 07:30 UTCEG score recompute
  10. 2026-09-16 07:30 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 09:03 UTCEG score recompute
  13. 2026-09-15 09:03 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 10:36 UTCEG score recompute
  16. 2026-09-14 10:36 UTCGHSA enrichment
  17. 2026-09-13 12:09 UTCEG score recompute
  18. 2026-09-13 12:09 UTCGHSA enrichment
  19. 2026-09-12 15:02 UTCEPSS rescore
  20. 2026-09-12 13:42 UTCGHSA enrichment
  21. 2026-09-11 15:15 UTCEG score recompute
  22. 2026-09-11 15:15 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-10 16:47 UTCEG score recompute
  25. 2026-09-10 16:47 UTCGHSA enrichment
Show 12 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-09 18:19 UTCEG score recompute
  3. 2026-09-09 18:19 UTCGHSA enrichment
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-08 19:51 UTCGHSA enrichment
  6. 2026-09-08 11:32 UTCEG score recompute
  7. 2026-09-08 11:32 UTCGHSA enrichment
  8. 2026-09-08 10:51 UTCEG score recompute
  9. 2026-09-08 10:51 UTCGHSA enrichment
  10. 2026-09-08 01:27 UTCEG score recompute
  11. 2026-09-08 00:36 UTCEG score recompute
  12. 2026-09-08 00:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-76977?
CVE-2026-76977 is a medium vulnerability published on September 8, 2026. SAP UI5 does not sufficiently validate the parent frame's origin against the configured allowlist. An unauthenticated attacker could host a malicious page to bypass framing restrictions. If an authenticated victim visits the attacker's page and interacts with it, the attacker could trick the victim…
When was CVE-2026-76977 disclosed?
CVE-2026-76977 was first published in the National Vulnerability Database on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76977 actively exploited?
CVE-2026-76977 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 86.8% of all scored CVEs.
What is the CVSS score of CVE-2026-76977?
CVE-2026-76977 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-76977?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76977, 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-2026-76977

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