CVE-2026-77814Network attack vector

Unauthenticated file disclosure via path-prefix confusion

Published Aug 21, 2026 · Updated Aug 21, 2026

Path traversal in zanllp Infinite Image Browsing 1.8.0 and earlier allows remote attackers to read files via crafted API paths. is_path_trusted in scripts/iib/api.py accepts any requested path whose string starts with an allowed parent path, so a sibling directory sharing that prefix passes confinement and FileResponse serves its files. The bypass is reachable when access control is enabled, including network-exposed SD WebUI deployments; disclosure is limited to files readable by the service.

CVSS severityUnavailable
Unscored
EPSS probability0.41%
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 zanllp Infinite Image Browsing 1.8.0 and earlier allows remote attackers to read files via crafted API paths. is_path_trusted in scripts/iib/api.py accepts any requested path whose string starts with an allowed parent path, so a sibling directory sharing that prefix passes confinement and FileResponse serves its files. The bypass is reachable when access control is enabled, including network-exposed SD WebUI deployments; disclosure is limited to files readable by the service.

The record

CVE
CVE-2026-77814
Published
Aug 21, 2026
Updated
Aug 21, 2026
Vendor
zanllp
Product
Infinite Image Browsing
Classifications
T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

zanllp · Infinite Image Browsingversion=0 <=1.8.0

Published CVSS scores

No CVSS assessment is available in this record.

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

T1005Data from Local System

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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