time affected by a stack exhaustion denial of service attack

{
  "id": "9cdbb47d99a62353a1ac67c96613187de59ada71de018a6290b0c9b8355712a0",
  "url": "https://osv.dev/vulnerability/CVE-2026-25727",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "time affected by a stack exhaustion denial of service attack",
    "summary": "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.",
    "evidence": "osv:CVE-2026-25727",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-25727",
      "aliases": [
        "CVE-2026-25727",
        "GHSA-r6v5-fh4h-64xc",
        "RUSTSEC-2026-0009"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/time-rs/time",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3ff454351155515b4e4cc15fda8db46eec3ef706"
                },
                {
                  "fixed": "d5144cd2874862d46466c900910cd8577d066019"
                },
                {
                  "fixed": "1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:time_project:time:*:*:*:*:*:rust:*:*",
                    "range": [
                      {
                        "introduced": "0.3.6"
                      },
                      {
                        "fixed": "0.3.47"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d5144cd2874862d46466c900910cd8577d066019"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.3.47"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.46",
            "v0.3.45",
            "v0.3.44",
            "v0.3.43",
            "v0.3.42",
            "v0.3.41",
            "v0.3.40",
            "v0.3.39",
            "v0.3.38",
            "v0.3.37",
            "v0.3.36",
            "v0.3.35",
            "v0.3.34",
            "v0.3.33",
            "v0.3.32",
            "v0.3.31",
            "v0.3.30",
            "v0.3.29",
            "v0.3.28",
            "v0.3.27",
            "v0.3.26",
            "v0.3.25",
            "v0.3.24",
            "v0.3.23",
            "v0.3.22",
            "v0.3.21",
            "v0.3.20",
            "v0.3.19",
            "v0.3.18",
            "v0.3.17",
            "v0.3.16",
            "v0.3.15",
            "v0.3.14",
            "v0.3.13",
            "v0.3.12",
            "v0.3.11",
            "v0.3.10",
            "v0.3.9",
            "v0.3.7",
            "v0.3.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25727.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.178831315Z",
      "provider": "osv",
      "references": [
        "https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05",
        "https://github.com/time-rs/time/releases/tag/v0.3.47",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25727.json",
        "https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-25727",
        "https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-121"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25727.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-25727",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492972,
  "published_at": "2026-02-06T19:20:56.298+00:00"
}