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CVE-2026-34993

AIOHTTP Vulnerable to Deserialization of Untrusted Data

CVSS score

6.4

EPSS probability

%0.5

Risk score

0.0

Published

4 mo ago

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-34993 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-34993 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1aio-libsaiohttp View
2aiohttpaiohttp View
Total affected vendors: 2|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.3CVSS V31HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HNVD
7.2CVSS V31HIGHCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:HNVD
7.2CVSS V3_1HIGHCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:HCVE ADP
6.4CVSS V31MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:LNVD
6.4CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:LCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-34993 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-34993 weaknesses.

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsHigh
UserGerekiyor

Official Sources and Advisories

CVSS Vector Radar Chart

6.4 / 10
Attack VectorLocalComplexityHighPrivilegesHighUser Interact.RequiredConfidentialityHighIntegrityHighAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredHigh privileges
User Interaction—
Confidentiality (Gizlilik)High
Integrity (Bütünlük)High
Availability (Erişilebilirlik)Low

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

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aio-libs
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aiohttp

Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

Get this vulnerability through the API

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