UBUNTU-CVE-2026-25727 (CVE-2026-25727)

Vulnerability from osv_ubuntu – Published: 2026-02-06 20:16 – Updated: 2026-05-20 15:26 – Source website
VLAI
Details

time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack.

Severity
6.8 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-time+rustc-serialize-dev",
            "binary_version": "0.1.42-1"
          },
          {
            "binary_name": "librust-time-dev",
            "binary_version": "0.1.42-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rust-time",
        "purl": "pkg:deb/ubuntu/rust-time@0.1.42-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.42-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-time-dev",
            "binary_version": "0.3.5-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rust-time",
        "purl": "pkg:deb/ubuntu/rust-time@0.3.5-3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.42-1",
        "0.3.5-2",
        "0.3.5-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-time-dev",
            "binary_version": "0.3.31-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-time",
        "purl": "pkg:deb/ubuntu/rust-time@0.3.31-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.23-2",
        "0.3.31-1",
        "0.3.31-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-time-dev",
            "binary_version": "0.3.39-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-time",
        "purl": "pkg:deb/ubuntu/rust-time@0.3.39-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.37-1",
        "0.3.39-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-time-dev",
            "binary_version": "0.3.47-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rust-time",
        "purl": "pkg:deb/ubuntu/rust-time@0.3.47-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.39-1",
        "0.3.44-1",
        "0.3.47-1"
      ]
    }
  ],
  "aliases": [],
  "details": "time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack.",
  "id": "UBUNTU-CVE-2026-25727",
  "modified": "2026-05-20T15:26:05Z",
  "published": "2026-02-06T20:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-25727"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-25727"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0009.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/advisories/GHSA-r6v5-fh4h-64xc"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/time-rs/time/releases/tag/v0.3.47"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-25727"
  ]
}



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