Is there a public exploit for CVE-2026-77815?

No public exploit for CVE-2026-77815 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-77815?

CVE-2026-77815 scores CVSS 8.7 (v4.0), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.51%.

What does CVE-2026-77815 affect?

CVE-2026-77815 affects zanllp infinite-image-browsing.

8.7 High

toabspath in scripts/iib/tool.py normalised the requested path with os.path.normpath, which collapses dot segments but does not resolve…

CVE-2026-77815

toabspath in scripts/iib/tool.py normalised the requested path with os.path.normpath, which collapses dot segments but does not resolve symbolic links. A symlink placed inside a scanned directory therefore satisfies the containment comparison performed by ispathtrusted in scripts/iib/api.py while pointing outside that directory, and FileResponse follows the link when serving the response, so a link created in an image directory and targeting a file such as /etc/passwd discloses that file. Whether the check applies depends on getenableaccesscontrol in scripts/iib/tool.py: it returns true when IIBACCESSCONTROL is set to enable, false when set to disable, and otherwise true when the host Stable Diffusion WebUI was started with share, ngrok, listen or servername, falling back to false. Confinement is therefore active in the network-exposed WebUI deployments that rely on it, while a standalone run with no such option serves every readable file regardless of this flaw. The fix resolves the path with os.path.realpath.

Assessment

CVSS: 8.7 (v4.0)
Severity: High
EPSS: 0.51% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 21 August 2026
Last updated: 8 November 2026
Affected: zanllp · infinite-image-browsing
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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