IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path traversal sequence in the filename.
CVE-2026-7646
“—” beside the score: it is equal to the CVSS score beside it.
Score 6.5 from GitHub Security Advisory published 2026-08-05. A secondary CVSS source baseline 6.5; sources differ by 0.0.
- Lower severity and no public exploit yet
IBM recommends upgrading to Langflow OSS 1.11.0 or newer https://github.com/langflow-ai/langflow/releases (from the CVE record's solution, IBM Corporation) — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMmedium confidence
- EG Risk
- 29EG Risk 29/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity65% × 45%Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: IBM recommends upgrading to Langflow OSS 1.11.0 or newer https://github.com/langflow-ai/langflow/releases (from the CVE record's solution, IBM Corporation). Apply it within your standard update timelines. - EPSS PROB
- 0.5%
- EPSS %ILE
- 41st
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.5% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
IBM recommends upgrading to Langflow OSS 1.11.0 or newer https://github.com/langflow-ai/langflow/releases (from the CVE record's solution, IBM Corporation). Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 5, 2026
Last Modified
August 6, 2026
Advisory Details (1)
Auto-updated Aug 5, 2026Security Bulletin: Langflow is affected by security vulnerabilities in Model Context Protocol features
https://www.ibm.com/support/pages/node/7282147Vendor Advisories for CVE-2026-7646(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 8× in last 7d / 57× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 98 of 181 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 83 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-18 03:12 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-12 15:38 UTCEG score recompute
- 2026-10-11 19:24 UTCEG score recompute
- 2026-10-11 16:40 UTCEG score recompute
- 2026-10-11 13:58 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-06 23:37 UTCEG score recompute
- 2026-10-06 23:37 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-05 19:34 UTCEG score recompute
- 2026-10-05 19:34 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
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- 2026-10-04 05:59 UTCEG score recompute
- 2026-10-04 05:59 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-02 09:53 UTCEG score recompute
- 2026-10-02 09:53 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-10-01 02:16 UTCEG score recompute
- 2026-10-01 02:16 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-29 06:14 UTCEG score recompute
- 2026-09-29 06:14 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-27 17:40 UTCEG score recompute
- 2026-09-27 17:40 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-25 05:16 UTCEG score recompute
- 2026-09-25 05:16 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 36th percentile
- 2026-09-24 04:09 UTCEG score recompute
- 2026-09-24 04:09 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-09-23 02:34 UTCEG score recompute
- 2026-09-23 02:34 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-09-22 01:26 UTCEG score recompute
- 2026-09-22 01:26 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-09-20 04:30 UTCEG score recompute
- 2026-09-20 04:29 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-19 03:22 UTCEG score recompute
- 2026-09-19 03:22 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-09-18 02:13 UTCEG score recompute
- 2026-09-18 02:13 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-17 01:06 UTCEG score recompute
- 2026-09-17 01:06 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-15 16:17 UTCEG score recompute
- 2026-09-15 16:17 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-14 11:59 UTCEG score recompute
- 2026-09-14 11:59 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-13 10:52 UTCEG score recompute
- 2026-09-13 10:52 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-12 09:44 UTCEG score recompute
- 2026-09-12 09:44 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-11 08:36 UTCEG score recompute
- 2026-09-11 08:36 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-10 07:29 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-09 06:20 UTCEG score recompute
- 2026-09-09 06:20 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-07 18:14 UTCEG score recompute
- 2026-09-07 18:14 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-06 11:48 UTCEG score recompute
- 2026-09-06 11:48 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-05 10:41 UTCEG score recompute
- 2026-09-05 10:40 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-04 09:30 UTCEG score recompute
- 2026-09-04 09:30 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-03 06:46 UTCEG score recompute
- 2026-09-03 06:46 UTCGHSA enrichmentGHSA-x37c-x545-wrmw · GitHub CVSS 6.5
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-02 00:49 UTCEG score recompute
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Frequently asked(5)
What is CVE-2026-7646?
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Is CVE-2026-7646 actively exploited?
What is the CVSS score of CVE-2026-7646?
How do I remediate CVE-2026-7646?
Dependency Blast Radius
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