CVE-2025-9086 (GCVE-0-2025-9086)

Vulnerability from cvelistv5 – Published: 2025-09-12 05:10 – Updated: 2026-06-02 12:59
VLAI
Title
Out of bounds read for cookie path
Summary
1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with just a slash as path (`path=\"/\",`). Since this site is not secure, the cookie *should* just be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
curl curl Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.3 (custom)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
Create a notification for this product.
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Affected: 0 , < V3.3 (custom)
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Siemens SCALANCE XCH328 Affected: 0 , < V3.3 (custom)
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Siemens SCALANCE XCM324 Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XCM328 Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XCM332 Affected: 0 , < V3.3 (custom)
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Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (230 V AC, 12xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (230 V AC, 8xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (24 V DC, 12xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (24 V DC, 8xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Siemens SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) Affected: 0 , < V3.3 (custom)
Create a notification for this product.
Credits
Google Big Sleep Daniel Stenberg
Show details on NVD website
To clipboard 

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\"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.3\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-089022.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-253495.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-06-02T12:59:46.514Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-9086\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-09-12T17:15:47.921625Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-09-12T17:16:09.204Z\"}}], \"cna\": {\"title\": \"Out of bounds read for cookie path\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Google Big Sleep\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Daniel Stenberg\"}], \"affected\": [{\"vendor\": \"curl\", \"product\": \"curl\", \"versions\": [{\"status\": \"affected\", \"version\": \"8.15.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.15.0\"}, {\"status\": \"affected\", \"version\": \"8.14.1\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.14.1\"}, {\"status\": \"affected\", \"version\": \"8.14.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.14.0\"}, {\"status\": \"affected\", \"version\": \"8.13.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.13.0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://curl.se/docs/CVE-2025-9086.json\", \"name\": \"json\"}, {\"url\": \"https://curl.se/docs/CVE-2025-9086.html\", \"name\": \"www\"}, {\"url\": \"https://hackerone.com/reports/3294999\", \"name\": \"issue\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"1. A cookie is set using the `secure` keyword for `https://target` \\n 2. curl is redirected to or otherwise made to speak with `http://target` (same \\n   hostname, but using clear text HTTP) using the same cookie set \\n 3. The same cookie name is set - but with just a slash as path (`path=\\\\\\\"/\\\\\\\",`).\\n   Since this site is not secure, the cookie *should* just be ignored.\\n4. A bug in the path comparison logic makes curl read outside a heap buffer\\n   boundary\\n\\nThe bug either causes a crash or it potentially makes the comparison come to\\nthe wrong conclusion and lets the clear-text site override the contents of the\\nsecure cookie, contrary to expectations and depending on the memory contents\\nimmediately following the single-byte allocation that holds the path.\\n\\nThe presumed and correct behavior would be to plainly ignore the second set of\\nthe cookie since it was already set as secure on a secure host so overriding\\nit on an insecure host should not be okay.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-125 Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"shortName\": \"curl\", \"dateUpdated\": \"2026-01-08T09:51:46.552Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-9086\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-02T12:59:46.514Z\", \"dateReserved\": \"2025-08-16T05:40:23.800Z\", \"assignerOrgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"datePublished\": \"2025-09-12T05:10:03.815Z\", \"assignerShortName\": \"curl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.