cve-2025-67721

HIGH CVSS 7.5 opencve
Description

Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.

Timeline
Published
2025-12-12 23:15 UTC
Last Modified
2026-06-17
CVSS Details

CVSS details not available.

Affected Products

No product information available.

Weaknesses (CWE)
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
4.0 6.3 MEDIUM CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N mitre
4.0 6.3 MEDIUM CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X nvd
3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N nvd
4.0 6.3 MEDIUM CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N opencve
3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N opencve
References

No references available.

Linked Vulnerabilities

{
  "advisories": [
    {
      "id": "GHSA-vx9q-rhv9-3jvg",
      "source": "ghsa",
      "title": "aircompressor Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer",
      "url": "https://github.com/advisories/GHSA-vx9q-rhv9-3jvg"
    }
  ],
  "cve": "CVE-2025-67721",
  "enrichment": {
    "created": "2025-12-14T21:15:11.213691+00:00",
    "updated": "2025-12-14T21:15:11.213739+00:00",
    "vendors": [
      "airlift",
      "airlift$PRODUCT$aircompressor"
    ]
  },
  "epss": {
    "score": 0.00526
  },
  "mitre": {
    "cpes": [],
    "created": "2025-12-12T22:11:10.971000+00:00",
    "description": "Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {
        "score": 6.3,
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
      }
    },
    "mitre_repo_path": "cves/2025/67xxx/CVE-2025-67721.json",
    "references": [
      "https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15",
      "https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765",
      "https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvg"
    ],
    "title": "Aircompressor's Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer",
    "updated": "2025-12-15T15:04:15.629000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-125",
      "CWE-201"
    ]
  },
  "nvd": {
    "cpes": [
      "cpe:2.3:a:airlift:aircompressor:*:*:*:*:*:*:*:*"
    ],
    "created": "2025-12-12T23:15:42.067000+00:00",
    "description": "Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 7.5,
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
      },
      "cvssV4_0": {
        "score": 6.3,
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
      }
    },
    "nvd_repo_path": "2025/CVE-2025-67721.json",
    "references": [
      "https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15",
      "https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765",
      "https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvg"
    ],
    "title": null,
    "updated": "2026-06-17T09:58:01.890000+00:00",
    "vendors": [
      "airlift",
      "airlift$PRODUCT$aircompressor"
    ],
    "weaknesses": [
      "CWE-125",
      "CWE-201"
    ]
  },
  "opencve": {
    "changes": [
      {
        "created": "2025-12-12T22:30:00+00:00",
        "data": [
          {
            "details": {
              "new": "Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.",
              "old": null
            },
            "type": "description"
          },
          {
            "details": {
              "new": "Aircompressor's Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer",
              "old": null
            },
            "type": "title"
          },
          {
            "details": {
              "added": [
                "CWE-125",
                "CWE-201"
              ],
              "removed": []
            },
            "type": "weaknesses"
          },
          {
            "details": {
              "added": [
                "https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15",
                "https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765",
                "https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvg"
              ],
              "removed": []
            },
            "type": "references"
          },
          {
            "details": {
              "added": {
                "cvssV4_0": {
                  "score": 6.3,
                  "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "232c1335-4c9b-41a8-8e3d-ecfa4086ed31"
      },
      {
        "created": "2025-12-14T21:30:00+00:00",
        "data": [
          {
            "details": [
              "airlift",
              "airlift$PRODUCT$aircompressor"
            ],
            "type": "first_time"
          },
          {
            "details": {
              "added": [
                "airlift",
                "airlift$PRODUCT$aircompressor"
              ],
              "removed": []
            },
            "type": "vendors"
          }
        ],
        "id": "29da65d6-6000-46b6-badb-8bd56f9487a9"
      },
      {
        "created": "2025-12-15T15:15:00+00:00",
        "data": [
          {
            "details": {
              "added": {
                "ssvc": {
                  "options": {
                    "Automatable": "yes",
                    "Exploitation": "none",
                    "Technical Impact": "partial"
                  },
                  "version": "2.0.3"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "f388758f-2a75-43ab-a4a5-6ba7c190122e"
      },
      {
        "created": "2026-03-17T19:45:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "cpe:2.3:a:airlift:aircompressor:*:*:*:*:*:*:*:*"
              ],
              "removed": []
            },
            "type": "cpes"
          },
          {
            "details": {
              "added": {
                "cvssV3_1": {
                  "score": 7.5,
                  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "9977583b-4033-49f2-9a55-258d143a9368"
      }
    ],
    "cpes": {
      "data": [
        "cpe:2.3:a:airlift:aircompressor:*:*:*:*:*:*:*:*"
      ],
      "providers": [
        "nvd"
      ]
    },
    "created": {
      "data": "2025-12-12T22:11:10.971000+00:00",
      "provider": "mitre"
    },
    "description": {
      "data": "Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.",
      "provider": "mitre"
    },
    "metrics": {
      "cvssV2_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_1": {
        "data": {
          "score": 7.5,
          "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        },
        "provider": "nvd"
      },
      "cvssV4_0": {
        "data": {
          "score": 6.3,
          "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        },
        "provider": "mitre"
      },
      "epss": {
        "data": {
          "score": 0.00526
        },
        "provider": "first"
      },
      "kev": {
        "data": {},
        "provider": null
      },
      "ssvc": {
        "data": {
          "options": {
            "Automatable": "yes",
            "Exploitation": "none",
            "Technical Impact": "partial"
          },
          "version": "2.0.3"
        },
        "provider": "vulnrichment"
      },
      "threat_severity": {
        "data": null,
        "provider": null
      }
    },
    "references": {
      "data": [
        "https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15",
        "https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765",
        "https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvg"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    },
    "title": {
      "data": "Aircompressor's Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer",
      "provider": "mitre"
    },
    "updated": {
      "data": "2026-03-17T19:40:07.640000+00:00",
      "provider": "nvd"
    },
    "vendors": {
      "data": [
        "airlift",
        "airlift$PRODUCT$aircompressor"
      ],
      "providers": [
        "nvd",
        "enrichment"
      ]
    },
    "weaknesses": {
      "data": [
        "CWE-125",
        "CWE-201"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    }
  },
  "vulnrichment": {
    "cpes": [],
    "created": "2025-12-12T22:11:10.971000+00:00",
    "description": "Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {},
      "kev": {},
      "ssvc": {
        "options": {
          "Automatable": "yes",
          "Exploitation": "none",
          "Technical Impact": "partial"
        },
        "version": "2.0.3"
      }
    },
    "references": [],
    "title": "Aircompressor's Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer",
    "updated": "2025-12-15T15:04:07.531000+00:00",
    "vendors": [],
    "vulnrichment_repo_path": "2025/67xxx/CVE-2025-67721.json",
    "weaknesses": []
  }
}
Enrichment data
View JSON API Download JSON