IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.
CVE-2026-9103
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-17. a secondary CVSS source baseline 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- 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 computedSeverity98% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 3%
- EPSS %ILE
- 86%
- KEV
- Not listed
Published
July 17, 2026
Last Modified
July 23, 2026
Advisory Details (1)
Auto-updated Sep 19, 2026Security Bulletin: Unauthenticated Superuser Token Issuance via Auto-Login Endpoint
https://www.ibm.com/support/pages/node/7278926Vendor Advisories for CVE-2026-9103(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 12× in last 7d / 97× 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.
Showing the most recent 100 of 315 total refreshes for this CVE.
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 09:55 UTCGHSA enrichment
- 2026-09-18 04:32 UTCEG score recompute
- 2026-09-18 04:32 UTCGHSA enrichment
- 2026-09-17 19:32 UTCEPSS rescore
- 2026-09-17 10:15 UTCEG score recompute
- 2026-09-17 10:15 UTCGHSA enrichment
- 2026-09-16 14:09 UTCEPSS rescore
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-14 12:18 UTCGHSA enrichment
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- 2026-09-13 13:53 UTCGHSA enrichment
- 2026-09-13 09:31 UTCGHSA enrichment
- 2026-09-13 05:08 UTCGHSA enrichment
- 2026-09-12 17:00 UTCEG score recompute
- 2026-09-12 17:00 UTCGHSA enrichment
- 2026-09-12 15:02 UTCEPSS rescore
- 2026-09-12 12:36 UTCGHSA enrichment
- 2026-09-12 07:23 UTCGHSA enrichment
- 2026-09-12 01:28 UTCGHSA enrichment
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- 2026-09-11 21:06 UTCEG score recompute
- 2026-09-11 21:06 UTCGHSA enrichment
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 09:38 UTCEPSS rescore
- 2026-09-10 09:35 UTCEPSS rescore
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-08 00:00 UTCEG score recompute
- 2026-09-07 23:59 UTCGHSA enrichment
- 2026-09-06 17:44 UTCEG score recompute
- 2026-09-06 17:44 UTCGHSA enrichment
- 2026-09-06 13:48 UTCEPSS rescore
- 2026-09-06 13:21 UTCGHSA enrichment
- 2026-09-06 05:51 UTCGHSA enrichment
- 2026-09-06 01:29 UTCGHSA enrichment
- 2026-09-05 20:26 UTCEG score recompute
- 2026-09-05 20:26 UTCGHSA enrichment
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-04 05:07 UTCEPSS rescore
- 2026-09-02 14:12 UTCEPSS rescore
- 2026-09-01 13:54 UTCEPSS rescore
- 2026-09-01 04:40 UTCEPSS rescore
- 2026-08-31 05:49 UTCGHSA enrichment
- 2026-08-31 01:26 UTCGHSA enrichment
- 2026-08-30 21:02 UTCEG score recompute
- 2026-08-30 21:02 UTCGHSA enrichment
- 2026-08-30 19:18 UTCEPSS rescore
- 2026-08-30 16:39 UTCGHSA enrichment
- 2026-08-30 12:17 UTCGHSA enrichment
- 2026-08-30 07:38 UTCGHSA enrichment
- 2026-08-30 03:16 UTCEG score recompute
- 2026-08-30 03:16 UTCGHSA enrichment
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-28 01:48 UTCGHSA enrichment
- 2026-08-27 21:25 UTCEG score recompute
- 2026-08-27 21:25 UTCGHSA enrichment
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-27 12:13 UTCGHSA enrichment
- 2026-08-27 02:58 UTCGHSA enrichment
- 2026-08-26 22:36 UTCEG score recompute
- 2026-08-26 22:35 UTCGHSA enrichment
- 2026-08-26 14:47 UTCEPSS rescore
- 2026-08-26 13:42 UTCGHSA enrichment
- 2026-08-26 09:02 UTCGHSA enrichment
- 2026-08-26 04:33 UTCGHSA enrichment
- 2026-08-25 23:48 UTCGHSA enrichment
- 2026-08-25 18:52 UTCEG score recompute
- 2026-08-25 18:52 UTCGHSA enrichment
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 13:10 UTCGHSA enrichment
- 2026-08-25 08:43 UTCGHSA enrichment
- 2026-08-25 03:59 UTCGHSA enrichment
- 2026-08-24 23:37 UTCGHSA enrichment
- 2026-08-24 19:15 UTCEG score recompute
- 2026-08-24 19:15 UTCGHSA enrichment
- 2026-08-24 14:18 UTCEPSS rescore
- 2026-08-24 13:34 UTCEG score recompute
- 2026-08-24 13:34 UTCGHSA enrichment
- 2026-08-24 09:08 UTCGHSA enrichment
- 2026-08-24 04:26 UTCGHSA enrichment
- 2026-08-24 00:03 UTCGHSA enrichment
- 2026-08-23 19:41 UTCGHSA enrichment
- 2026-08-23 15:18 UTCGHSA enrichment
- 2026-08-23 10:55 UTCGHSA enrichment
- 2026-08-23 06:32 UTCGHSA enrichment
- 2026-08-23 02:10 UTCEG score recompute
- 2026-08-23 02:10 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 21:47 UTCGHSA enrichment
- 2026-08-22 17:24 UTCGHSA enrichment
- 2026-08-22 13:01 UTCGHSA enrichment
- 2026-08-22 08:38 UTCGHSA enrichment
- 2026-08-22 04:15 UTCGHSA enrichment
- 2026-08-21 23:51 UTCEG score recompute
- 2026-08-21 23:51 UTCGHSA enrichment
Publicly available exploits
(1 reference)Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Nucleihttp/cves/2026/CVE-2026-9103.yamlFirst seen Jan 1, 2026
Langflow OSS - Superuser Token Issuance
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-306
Frequently asked(5)
What is CVE-2026-9103?
When was CVE-2026-9103 disclosed?
Is CVE-2026-9103 actively exploited?
What is the CVSS score of CVE-2026-9103?
How do I remediate CVE-2026-9103?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-9103
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