CVE-2022-22817Public exploit

Arbitrary code execution via unrestricted expression evaluation

Published Jan 7, 2022 · Updated Oct 15, 2024

Code injection in Pillow before 9.0.1 allows context-dependent attackers to execute arbitrary Python through PIL.ImageMath.eval. The function passed a caller-supplied expression to Python's built-in eval with unrestricted builtins; 9.0.0 still exposed builtins inside lambdas. Exploitation requires a consuming application to pass attacker-controlled expression text, after which code runs with that application's privileges.

CVSS severity9.3
Critical
EPSS probability3.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Pillow before 9.0.1 allows context-dependent attackers to execute arbitrary Python through PIL.ImageMath.eval. The function passed a caller-supplied expression to Python's built-in eval with unrestricted builtins; 9.0.0 still exposed builtins inside lambdas. Exploitation requires a consuming application to pass attacker-controlled expression text, after which code runs with that application's privileges.

The record

CVE
CVE-2022-22817
Published
Jan 7, 2022
Updated
Oct 15, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1059.006
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 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 vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

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No observations available

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

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.006Command and Scripting Interpreter: Python

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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