CVE-2022-35411Public exploitNetwork attack vector

Remote code execution via forced pickle deserialization

Published Jul 8, 2022 · Updated Aug 3, 2024

Deserialization of untrusted data in rpc.py 0.4.2 through 0.6.0 allows remote attackers to execute code via an HTTP header. The get_serializer path honors a client-supplied serializer: pickle header and passes request data to Python unpickle despite JSON being the default. No authentication is required, so any network client reaching the RPC endpoint can achieve code execution with the server process privileges.

CVSS severity9.8
Critical
EPSS probability46.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in rpc.py 0.4.2 through 0.6.0 allows remote attackers to execute code via an HTTP header. The get_serializer path honors a client-supplied serializer: pickle header and passes request data to Python unpickle despite JSON being the default. No authentication is required, so any network client reaching the RPC endpoint can achieve code execution with the server process privileges.

The record

CVE
CVE-2022-35411
Published
Jul 8, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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