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CVE-2026-81213 (GCVE-0-2026-81213)

Vulnerability from cvelistv5 – Published: 2026-09-10 21:32 – Updated: 2026-09-10 21:32
VLAI
Title
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
Summary
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to obtain sensitive information from internal network resources due to improper validation of user-supplied URLs.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7286665 vendor-advisorypatch
Impacted products
Vendor Product Version CPE status
IBM Langflow OSS Affected: 1.0.0 , ≤ 1.11.5 (semver)
    cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*
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            "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
          ],
          "product": "Langflow OSS",
          "vendor": "IBM",
          "versions": [
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              "lessThanOrEqual": "1.11.5",
              "status": "affected",
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            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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            }
          ],
          "value": "IBM strongly recommends addressing the vulnerability now by upgrading  Langflow OSS to version 1.11.6 https://pypi.org/project/langflow/"
        }
      ],
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  "cveMetadata": {
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    "dateReserved": "2026-08-26T17:04:56.688Z",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.