Vulnerability-Lookup

GHSA-FQ3F-M5QM-99F5

Vulnerability from github – Published: 2026-07-29 17:16 – Updated: 2026-07-29 17:16

Summary

OpenTelemetry Javaagent RMI context propagation allows resource exhaustion

Details

The RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream.

An attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory allocation while the JVM reads the payload, potentially leading to denial of service.

The issue affects only deployments where RMI instrumentation is enabled and an RMI endpoint is network-reachable.

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.opentelemetry.javaagent:opentelemetry-javaagent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.27.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54712"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-29T17:16:32Z",
    "nvd_published_at": "2026-07-01T22:16:50Z",
    "severity": "MODERATE"
  },
  "details": "The RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream.\n\nAn attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory allocation while the JVM reads the payload, potentially leading to denial of service.\n\nThe issue affects only deployments where RMI instrumentation is enabled and an RMI endpoint is network-reachable.",
  "id": "GHSA-fq3f-m5qm-99f5",
  "modified": "2026-07-29T17:16:32Z",
  "published": "2026-07-29T17:16:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-fq3f-m5qm-99f5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54712"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/17870"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/commit/6ef18806d5daa4913619e4cb33d2d7ed6a853c22"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v2.27.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenTelemetry Javaagent RMI context propagation allows resource exhaustion"
}

CVE-2026-54712 (GCVE-0-2026-54712)

Vulnerability from cvelistv5 – Published: 2026-07-01 21:17 – Updated: 2026-07-02 15:41

Title

OpenTelemetry Javaagent RMI context propagation allows resource exhaustion

Summary

OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. In versions prior to 2.27.0, the RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream. An attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory allocation while the JVM reads the payload, potentially leading to denial of service. The issue affects only deployments where RMI instrumentation is enabled and an RMI endpoint is network-reachable. This issue has been fixed in version 2.27.0.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/open-telemetry/opentelemetry-j…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
open-telemetry	opentelemetry-java-instrumentation	Affected: < 2.27.0

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54712",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-02T15:40:45.548293Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-02T15:41:16.104Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "opentelemetry-java-instrumentation",
          "vendor": "open-telemetry",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c  2.27.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. In versions prior to 2.27.0, the RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream. An attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory allocation while the JVM reads the payload, potentially leading to denial of service. The issue affects only deployments where RMI instrumentation is enabled and an RMI endpoint is network-reachable. This issue has been fixed in version 2.27.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-01T21:17:44.160Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-fq3f-m5qm-99f5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-fq3f-m5qm-99f5"
        }
      ],
      "source": {
        "advisory": "GHSA-fq3f-m5qm-99f5",
        "discovery": "UNKNOWN"
      },
      "title": "OpenTelemetry Javaagent RMI context propagation allows resource exhaustion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54712",
    "datePublished": "2026-07-01T21:17:44.160Z",
    "dateReserved": "2026-06-15T22:58:06.563Z",
    "dateUpdated": "2026-07-02T15:41:16.104Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

GHSA-FQ3F-M5QM-99F5

CVE-2026-54712 (GCVE-0-2026-54712)

Tags

Sightings

Nomenclature