CVE-2022-31558Network attack vector

Arbitrary file read via unsafe send_file path

Published Jul 11, 2022 · Updated Aug 3, 2024

Path traversal in shiva-server through 0.10.0 allows remote attackers to read arbitrary files via crafted absolute paths sent to Flask. The affected request handler passes attacker-controlled path data directly to Flask send_file without restricting it to an intended directory, enabling absolute path traversal. The service must be network reachable; successful requests disclose readable files, with no evidence of file modification or service interruption.

CVSS severity9.3
Critical
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in shiva-server through 0.10.0 allows remote attackers to read arbitrary files via crafted absolute paths sent to Flask. The affected request handler passes attacker-controlled path data directly to Flask send_file without restricting it to an intended directory, enabling absolute path traversal. The service must be network reachable; successful requests disclose readable files, with no evidence of file modification or service interruption.

The record

CVE
CVE-2022-31558
Published
Jul 11, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 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

9.3GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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