CVE-2026-12944

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-15. a secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: Elevated riskExposed: 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 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. This enables: (1) AWS credential theft via IMDSv1 SSRF with full IAM role permissions, (2) arbitrary file exfiltration from the container filesystem, and (3) lateral movement to internal services (PostgreSQL, Redis) within the Docker network. The scanner incorrectly returns "validated": true, providing a false security signal.

CVSS v3
9.6
EG Score
9.6(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity96% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic

Security Bulletin: Incomplete Security Scanner Blocklist Enables Network-Based Code Execution

https://www.ibm.com/support/pages/node/7278919

Vendor Advisories for CVE-2026-12944(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 56× in last 7d / 56× 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. 2026-09-20 23:45 UTCEG score recompute
  2. 2026-09-20 23:45 UTCGHSA enrichment
  3. 2026-09-20 20:15 UTCEPSS rescore
  4. 2026-09-20 19:48 UTCGHSA enrichment
  5. 2026-09-20 15:52 UTCGHSA enrichment
  6. 2026-09-20 11:53 UTCGHSA enrichment
  7. 2026-09-20 07:57 UTCGHSA enrichment
  8. 2026-09-20 03:43 UTCGHSA enrichment
  9. 2026-09-19 23:46 UTCGHSA enrichment
  10. 2026-09-19 19:50 UTCGHSA enrichment
  11. 2026-09-19 15:54 UTCEG score recompute
  12. 2026-09-19 15:54 UTCGHSA enrichment
  13. 2026-09-19 11:55 UTCGHSA enrichment
  14. 2026-09-19 07:58 UTCGHSA enrichment
  15. 2026-09-19 04:02 UTCGHSA enrichment
  16. 2026-09-19 00:03 UTCGHSA enrichment
  17. 2026-09-18 20:06 UTCEG score recompute
  18. 2026-09-18 20:06 UTCGHSA enrichment
  19. 2026-09-18 19:27 UTCEPSS rescore
  20. 2026-09-18 16:08 UTCGHSA enrichment
  21. 2026-09-18 11:40 UTCGHSA enrichment
  22. 2026-09-18 07:44 UTCGHSA enrichment
  23. 2026-09-18 03:47 UTCGHSA enrichment
  24. 2026-09-17 23:51 UTCEG score recompute
  25. 2026-09-17 23:51 UTCGHSA enrichment
Show 31 more
  1. 2026-09-17 19:23 UTCEG score recompute
  2. 2026-09-17 19:23 UTCGHSA enrichment
  3. 2026-09-17 15:20 UTCGHSA enrichment
  4. 2026-09-17 11:24 UTCGHSA enrichment
  5. 2026-09-17 07:26 UTCGHSA enrichment
  6. 2026-09-17 03:29 UTCGHSA enrichment
  7. 2026-09-16 23:32 UTCGHSA enrichment
  8. 2026-09-16 19:35 UTCGHSA enrichment
  9. 2026-09-16 17:56 UTCEG score recompute
  10. 2026-09-16 17:55 UTCGHSA enrichment
  11. 2026-09-16 12:44 UTCGHSA enrichment
  12. 2026-09-16 08:48 UTCEG score recompute
  13. 2026-09-16 08:48 UTCGHSA enrichment
  14. 2026-09-16 05:14 UTCEPSS rescore
  15. 2026-09-16 04:21 UTCEG score recompute
  16. 2026-09-16 04:21 UTCGHSA enrichment
  17. 2026-09-16 03:32 UTCGHSA enrichment
  18. 2026-09-15 23:35 UTCGHSA enrichment
  19. 2026-09-15 19:38 UTCEG score recompute
  20. 2026-09-15 19:38 UTCGHSA enrichment
  21. 2026-09-15 19:14 UTCEG score recompute
  22. 2026-09-15 19:14 UTCGHSA enrichment
  23. 2026-09-15 18:14 UTCGHSA enrichment
  24. 2026-09-15 14:09 UTCGHSA enrichment
  25. 2026-09-15 10:12 UTCGHSA enrichment
  26. 2026-09-15 06:15 UTCGHSA enrichment
  27. 2026-09-15 02:19 UTCEG score recompute
  28. 2026-09-15 02:18 UTCGHSA enrichment
  29. 2026-09-14 22:20 UTCEG score recompute
  30. 2026-09-14 21:40 UTCEG score recompute
  31. 2026-09-14 21:39 UTCMITRE cvelistV5first tracked

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCcflowsec/CVE-2026-12944
    First seen Sep 15, 2026

    Langflow 1.10.0 urllib SSRF POC

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12944?
CVE-2026-12944 is a critical vulnerability published on September 14, 2026. IBM Langflow OSS 1.0.0 through 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. This enables: (1) AWS credential theft via IMDSv1 SSRF with full IAM role permissions, (2)…
When was CVE-2026-12944 disclosed?
CVE-2026-12944 was first published in the National Vulnerability Database on September 14, 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-2026-12944 actively exploited?
CVE-2026-12944 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-12944?
CVE-2026-12944 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-12944?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12944, 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-2026-12944

Explore →

Is Your Infrastructure Affected by CVE-2026-12944?

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

Start Free Scan →Browse All CVEs