Vulnerability-Lookup

CVE-2026-25727 (GCVE-0-2026-25727)

Vulnerability from cvelistv5 – Published: 2026-02-06 19:20 – Updated: 2026-02-06 20:22

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.

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

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

GitHub_M

References

URL

Tags

	https://github.com/time-rs/time/security/advisori…	x_refsource_CONFIRM
	https://github.com/time-rs/time/commit/1c63dc7985…	x_refsource_MISC
	https://github.com/time-rs/time/blob/main/CHANGEL…	x_refsource_MISC
	https://github.com/time-rs/time/releases/tag/v0.3.47	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	time-rs	time	Affected: >= 0.3.6, < 0.3.47

Show details on NVD website

JSON

To clipboard

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GHSA-R6V5-FH4H-64XC

Vulnerability from github – Published: 2026-02-05 17:57 – Updated: 2026-02-23 22:34

Summary

time vulnerable to stack exhaustion Denial of Service attack

Details

Impact

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.

Patches

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.

Workarounds

Limiting the length of user input is the simplest way to avoid stack exhaustion, as the amount of the stack consumed would be at most a factor of the length of the input.

Alternatively, avoiding the format altogether would also ensure that the vulnerability is not encountered. To do this, add

disallowed-types = ["time::format_description::well_known::Rfc2822"]

to your clippy.toml file. This will trigger the clippy::disallowed_types lint, which is warn-by-default and can be explicitly denied.

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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "time"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.6"
            },
            {
              "fixed": "0.3.47"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25727"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-05T17:57:55Z",
    "nvd_published_at": "2026-02-06T20:16:11Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nWhen 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.\n\n### Patches\n\nA 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.\n\n### Workarounds\n\nLimiting the length of user input is the simplest way to avoid stack exhaustion, as the amount of the stack consumed would be at most a factor of the length of the input.\n\nAlternatively, avoiding the format altogether would also ensure that the vulnerability is not encountered. To do this, add\n\n```toml\ndisallowed-types = [\"time::format_description::well_known::Rfc2822\"]\n```\n\nto your `clippy.toml` file. This will trigger the `clippy::disallowed_types` lint, which is warn-by-default and can be explicitly denied.",
  "id": "GHSA-r6v5-fh4h-64xc",
  "modified": "2026-02-23T22:34:23Z",
  "published": "2026-02-05T17:57:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25727"
    },
    {
      "type": "WEB",
      "url": "https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/time-rs/time"
    },
    {
      "type": "WEB",
      "url": "https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05"
    },
    {
      "type": "WEB",
      "url": "https://github.com/time-rs/time/releases/tag/v0.3.47"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0009.html"
    }
  ],
  "schema_version": "1.4.0",
  "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"
    }
  ],
  "summary": "time vulnerable to stack exhaustion Denial of Service attack"
}

cve-2026-25727

Vulnerability from osv_rustsec

Published

2026-02-05 12:00

Modified

2026-02-06 09:12

Summary

Denial of Service via Stack Exhaustion

Details

Impact

Patches

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.

Workarounds

Limiting the length of user input is the simplest way to avoid stack exhaustion, as the amount of the stack consumed would be at most a factor of the length of the input.

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "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",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "time::Date::parse",
            "time::OffsetDateTime::parse",
            "time::PrimitiveDateTime::parse",
            "time::Time::parse",
            "time::UtcDateTime::parse",
            "time::UtcOffset::parse",
            "time::parsing::Parsed::parse_item"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "time",
        "purl": "pkg:cargo/time"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.6"
            },
            {
              "fixed": "0.3.47"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2026-25727",
    "GHSA-r6v5-fh4h-64xc"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "## Impact\n\nWhen user-provided input is provided to any type that parses with the RFC 2822 format, a denial of\nservice attack via stack exhaustion is possible. The attack relies on formally deprecated and\nrarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary,\nnon-malicious input will never encounter this scenario.\n\n## Patches\n\nA limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned\nrather than exhausting the stack.\n\n## Workarounds\n\nLimiting the length of user input is the simplest way to avoid stack exhaustion, as the amount of\nthe stack consumed would be at most a factor of the length of the input.",
  "id": "RUSTSEC-2026-0009",
  "modified": "2026-02-06T09:12:16Z",
  "published": "2026-02-05T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/time"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0009.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05"
    }
  ],
  "related": [],
  "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"
    }
  ],
  "summary": "Denial of Service via Stack Exhaustion"
}

FKIE_CVE-2026-25727

Vulnerability from fkie_nvd - Published: 2026-02-06 20:16 - Updated: 2026-02-24 15:23

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05	Release Notes
security-advisories@github.com	https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee	Patch
security-advisories@github.com	https://github.com/time-rs/time/releases/tag/v0.3.47	Product, Release Notes
security-advisories@github.com	https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc	Vendor Advisory

Impacted products

	Vendor	Product	Version
	time_project	time	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:time_project:time:*:*:*:*:*:rust:*:*",
              "matchCriteriaId": "7B1E36BA-97A9-44D1-8E88-2E5B96901D1A",
              "versionEndExcluding": "0.3.47",
              "versionStartIncluding": "0.3.6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
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      "lang": "en",
      "value": "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": "CVE-2026-25727",
  "lastModified": "2026-02-24T15:23:35.563",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
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    },
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        "Patch"
      ],
      "url": "https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/time-rs/time/releases/tag/v0.3.47"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-25727 (GCVE-0-2026-25727)

GHSA-R6V5-FH4H-64XC

Impact

Patches

Workarounds

cve-2026-25727

Vulnerability from osv_rustsec

Impact

Patches

Workarounds

FKIE_CVE-2026-25727

Tags

Sightings

Nomenclature