CVE-2026-81268

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

Security Bulletin: Langflow is vulnerable to authentication bypass and insufficient session expiration

https://www.ibm.com/support/pages/node/7286662

Vendor Advisories for CVE-2026-81268(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 26× in last 7d / 46× 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 18:19 UTCEG score recompute
  2. 2026-09-19 18:19 UTCGHSA enrichment
  3. 2026-09-19 05:36 UTCEG score recompute
  4. 2026-09-19 05:36 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 16:54 UTCGHSA enrichment
  7. 2026-09-18 04:12 UTCEG score recompute
  8. 2026-09-18 04:12 UTCGHSA enrichment
  9. 2026-09-17 15:30 UTCGHSA enrichment
  10. 2026-09-17 02:40 UTCEG score recompute
  11. 2026-09-17 02:39 UTCGHSA enrichment
  12. 2026-09-16 14:08 UTCEPSS rescore
  13. 2026-09-16 13:52 UTCEG score recompute
  14. 2026-09-16 13:52 UTCGHSA enrichment
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-16 01:02 UTCGHSA enrichment
  17. 2026-09-15 21:16 UTCGHSA enrichment
  18. 2026-09-15 08:34 UTCEG score recompute
  19. 2026-09-15 08:34 UTCGHSA enrichment
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-14 19:52 UTCGHSA enrichment
  23. 2026-09-14 07:08 UTCGHSA enrichment
  24. 2026-09-13 18:26 UTCEG score recompute
  25. 2026-09-13 18:26 UTCGHSA enrichment
Show 21 more
  1. 2026-09-13 05:44 UTCGHSA enrichment
  2. 2026-09-12 17:02 UTCEG score recompute
  3. 2026-09-12 17:02 UTCGHSA enrichment
  4. 2026-09-12 04:20 UTCEG score recompute
  5. 2026-09-12 04:20 UTCGHSA enrichment
  6. 2026-09-12 03:59 UTCEG score recompute
  7. 2026-09-12 03:59 UTCGHSA enrichment
  8. 2026-09-12 03:50 UTCGHSA enrichment
  9. 2026-09-11 15:08 UTCEG score recompute
  10. 2026-09-11 15:08 UTCGHSA enrichment
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:23 UTCEG score recompute
  14. 2026-09-11 14:23 UTCGHSA enrichment
  15. 2026-09-11 13:50 UTCEG score recompute
  16. 2026-09-11 13:50 UTCGHSA enrichment
  17. 2026-09-11 11:01 UTCEG score recompute
  18. 2026-09-11 11:01 UTCGHSA enrichment
  19. 2026-09-10 22:19 UTCEG score recompute
  20. 2026-09-10 21:46 UTCEG score recompute
  21. 2026-09-10 21:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81268?
CVE-2026-81268 is a high vulnerability published on September 10, 2026. IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation.
When was CVE-2026-81268 disclosed?
CVE-2026-81268 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81268 actively exploited?
CVE-2026-81268 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 76.3% of all scored CVEs.
What is the CVSS score of CVE-2026-81268?
CVE-2026-81268 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-81268?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81268, 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-2026-81268

Explore →

Is Your Infrastructure Affected by CVE-2026-81268?

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

Start Free Scan →Browse All CVEs