CVE-2024-7592 (GCVE-0-2024-7592)
Vulnerability from cvelistv5 – Published: 2024-08-19 19:06 – Updated: 2025-11-03 22:32
VLAI
EPSS
VEX
Title
Quadratic complexity parsing cookies with backslashes
Summary
There is a LOW severity vulnerability affecting CPython, specifically the
'http.cookies' standard library module.
When parsing cookies that contained backslashes for quoted characters in
the cookie value, the parser would use an algorithm with quadratic
complexity, resulting in excess CPU resources being used while parsing the
value.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-03 17:21 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
12 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.15 (python) Affected: 3.11.0 , < 3.11.10 (python) Affected: 3.12.0 , < 3.12.6 (python) Affected: 3.13.0a1 , < 3.13.0rc2 (python) |
guessed | |
| python | cpython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.15 (python) Affected: 3.11.0 , < 3.11.10 (python) Affected: 3.12.0 , < 3.12.6 (python) Affected: 3.13.0a1 , < 3.13.0rc2 (python) cpe:2.3:a:python:cpython:*:*:*:*:*:*:*:* |
Date Public
2024-08-16 16:15
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"initial_release_date": "2024-08-19T00:00:00+00:00",
"product_status:fixed": "179",
"product_status:known_affected": "219",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "cpython: python: Uncontrolled CPU resource consumption when in http.cookies module",
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"version": "3"
},
"vulnrichment": {
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"shortName": "CVE"
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"references": [
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"url": "https://security.netapp.com/advisory/ntap-20241018-0006/"
}
],
"title": "CVE Program Container"
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{
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"metrics": [
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"options": [
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{
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"role": "CISA Coordinator",
"timestamp": "2024-09-03T17:21:02.520596Z",
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"dateUpdated": "2024-09-03T17:21:26.897Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
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}
],
"cna": {
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"datePublic": "2024-08-16T16:15:00.000Z",
"descriptions": [
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"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "\u003cp\u003eThere is a LOW severity vulnerability affecting CPython, specifically the\n\u0027\u003ci\u003e\u003cb\u003ehttp.cookies\u003c/b\u003e\u003c/i\u003e\u0027 standard library module.\u003c/p\u003e\n\u003cp\u003eWhen parsing cookies that contained backslashes for quoted characters in\nthe cookie value, the parser would use an algorithm with quadratic\ncomplexity, resulting in excess CPU resources being used while parsing the\nvalue.\u003c/p\u003e\u003cbr\u003e\u003cp\u003e\u003c/p\u003e"
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],
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}
],
"problemTypes": [
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"descriptions": [
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"cweId": "CWE-400",
"description": "CWE-400 Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
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"orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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},
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},
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"url": "https://github.com/python/cpython/issues/123067"
},
{
"tags": [
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],
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/HXJAAAALNUNGCQUS2W7WR6GFIZIHFOOK/"
},
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},
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},
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],
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}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Quadratic complexity parsing cookies with backslashes",
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}
}
},
"cveMetadata": {
"assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
"assignerShortName": "PSF",
"cveId": "CVE-2024-7592",
"datePublished": "2024-08-19T19:06:45.311Z",
"dateReserved": "2024-08-07T15:53:07.135Z",
"dateUpdated": "2025-01-31T19:55:12.119Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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