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CVE-2026-7872 IBM CVE debrief

IBM Langflow OSS 1.0.0 through 1.10.0 is vulnerable to an issue that allows an authenticated attacker to read arbitrary files, including the JWT signing key, and forge authentication tokens for any user. This vulnerability has a CVSS score of 7.5 and a severity of HIGH. Users of IBM Langflow OSS 1.0.0 through 1.10.0 should be aware of this vulnerability and take steps to mitigate it. The vulnerability is considered high priority and requires immediate attention.

Vendor
IBM
Product
Langflow OSS
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-17
Original CVE updated
2026-07-20
Advisory published
2026-07-17
Advisory updated
2026-07-20

Who should care

Users of IBM Langflow OSS 1.0.0 through 1.10.0, security teams, and operators managing affected deployments should be aware of this vulnerability and take steps to mitigate it. Affected deployments may be exposed to unauthorized access and data breaches.

Technical summary

CVE-2026-7872 is a vulnerability in IBM Langflow OSS 1.0.0 through 1.10.0 that allows an authenticated attacker to read arbitrary files, including the JWT signing key, and forge authentication tokens for any user. The vulnerability has a CVSS score of 7.5 and a severity of HIGH. Affected product deployments should be reviewed for exposure and patched or mitigated immediately.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, as it allows for the reading of arbitrary files and the forging of authentication tokens.

Recommended defensive actions

  • Apply the patch or update to a version of IBM Langflow OSS that is not vulnerable
  • Implement additional monitoring and logging to detect potential exploitation
  • Review and update authentication and authorization controls to prevent unauthorized access
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-07-17T20:17:30.377Z and has not been modified since then. The NVD entry is currently Received. The vulnerability affects IBM Langflow OSS 1.0.0 through 1.10.0, allowing an authenticated attacker to read arbitrary files including the JWT signing key and forge authentication tokens for any user. Evidence is limited to CVE and NVD details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-7872 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-7872

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-7872 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7872

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.