CVE-2026-77814

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-21. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

is_path_trusted in scripts/iib/api.py compares the requested path against each allowed parent directory with path.startswith(parent_path), without appending a path separator. A directory whose name merely begins with an allowed path therefore satisfies the comparison, so where /data/images is allowed a request for /data/images_private/secret.txt is treated as trusted and served by FileResponse, disclosing files the confinement was meant to exclude. Whether the check applies depends on get_enable_access_control in scripts/iib/tool.py: it returns true when IIB_ACCESS_CONTROL 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 server_name, 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 compares against parent_path joined with os.sep.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

August 21, 2026

Last Modified

August 21, 2026

Advisory Details (6)

Auto-updated Aug 21, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

Infinite Image Browsing is_path_trusted Prefix Comparison Omits the Trailing Path Separator | Advisories | VulnCheck

https://www.vulncheck.com/advisories/infinite-image-browsing-is-path-trusted-prefix-comparison-omits-the-trailing-path-separator
generic

GitHub - zanllp/infinite-image-browsing: A full-featured image/video management app with AI-powered organization and semantic search. Supports metadata from SD-webui, ComfyUI, Fooocus, NovelAI, StableSwarmUI, and more. Available as standalone app, SD-webui extension, or library. · GitHub

https://github.com/zanllp/infinite-image-browsing
generic

infinite-image-browsing/scripts/iib/api.py at v1.8.0 · zanllp/infinite-image-browsing · GitHub

https://github.com/zanllp/infinite-image-browsing/blob/v1.8.0/scripts/iib/api.py#L329-L344
github_commit

commit 4057a624c7a2 (zanllp/infinite-image-browsing)

Fix landed in zanllp/infinite-image-browsing commit 4057a624c7a2 — awaiting tagged release

https://github.com/zanllp/infinite-image-browsing/commit/4057a624c7a23a36f0b4dc6a545b40767d602450
github_pr

Fix path traversal in is_path_trusted (CWE-22/CWE-59)

Fix merged in zanllp/infinite-image-browsing PR #969 on 2026-08-21 — awaiting tagged release

https://github.com/zanllp/infinite-image-browsing/pull/969
generic

Path traversal in `is_path_trusted` — normpath + missing trailing separator · Issue #968 · zanllp/infinite-image-browsing · GitHub

https://github.com/zanllp/infinite-image-browsing/issues/968

Vendor Advisories for CVE-2026-77814(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-21 18:18 UTCEG score recompute
  2. 2026-08-21 18:18 UTCGHSA enrichment
  3. 2026-08-21 17:40 UTCEG score recompute
  4. 2026-08-21 17:40 UTCGHSA enrichment
  5. 2026-08-21 15:21 UTCEG score recompute
  6. 2026-08-21 15:10 UTCEG score recompute
  7. 2026-08-21 15:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-77814?
CVE-2026-77814 is a high vulnerability published on August 21, 2026. ispathtrusted in scripts/iib/api.py compares the requested path against each allowed parent directory with path.startswith(parentpath), without appending a path separator. A directory whose name merely begins with an allowed path therefore satisfies the comparison, so where /data/images is allowed…
When was CVE-2026-77814 disclosed?
CVE-2026-77814 was first published in the National Vulnerability Database on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-77814?
CVE-2026-77814 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-77814?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77814, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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