CVE-2026-77815

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

to_abs_path 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 is_path_trusted 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 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 resolves the path with os.path.realpath.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 21, 2026

Last Modified

September 24, 2026

Advisory Details (7)

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

Infinite Image Browsing Resolves Paths With normpath, Allowing Symlink Escape From Scanned Directories | Advisories | VulnCheck

https://www.vulncheck.com/advisories/infinite-image-browsing-resolves-paths-with-normpath-allowing-symlink-escape-from-scanned-directories
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
generic

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

https://github.com/zanllp/infinite-image-browsing/blob/v1.8.0/scripts/iib/tool.py#L172-L175
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-2026-77815(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 23× in last 7d / 110× 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.

Showing the most recent 100 of 189 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-09 05:56 UTCEG score recompute
  3. 2026-10-09 05:56 UTCGHSA enrichment
  4. 2026-10-08 17:13 UTCEPSS rescore
  5. 2026-10-08 04:55 UTCEG score recompute
  6. 2026-10-08 04:55 UTCGHSA enrichment
  7. 2026-10-07 23:48 UTCEPSS rescore
  8. 2026-10-07 07:33 UTCGHSA enrichment
  9. 2026-10-06 19:46 UTCEG score recompute
  10. 2026-10-06 19:45 UTCGHSA enrichment
  11. 2026-10-06 15:18 UTCEPSS rescore
  12. 2026-10-06 07:49 UTCEG score recompute
  13. 2026-10-06 07:49 UTCGHSA enrichment
  14. 2026-10-05 17:43 UTCEPSS rescore
  15. 2026-10-05 17:07 UTCGHSA enrichment
  16. 2026-10-05 04:55 UTCEG score recompute
  17. 2026-10-05 04:55 UTCGHSA enrichment
  18. 2026-10-04 23:22 UTCEPSS rescore
  19. 2026-10-04 16:21 UTCGHSA enrichment
  20. 2026-10-04 04:30 UTCGHSA enrichment
  21. 2026-10-03 16:42 UTCEG score recompute
  22. 2026-10-03 16:42 UTCGHSA enrichment
  23. 2026-10-03 14:26 UTCEPSS rescore
  24. 2026-10-02 21:00 UTCEG score recompute
  25. 2026-10-02 21:00 UTCGHSA enrichment
Show 75 more
  1. 2026-10-02 09:12 UTCGHSA enrichment
  2. 2026-10-01 21:25 UTCEG score recompute
  3. 2026-10-01 21:25 UTCGHSA enrichment
  4. 2026-10-01 19:50 UTCEPSS rescore
  5. 2026-10-01 08:16 UTCGHSA enrichment
  6. 2026-09-30 20:28 UTCEG score recompute
  7. 2026-09-30 20:28 UTCGHSA enrichment
  8. 2026-09-30 07:54 UTCGHSA enrichment
  9. 2026-09-29 16:13 UTCEG score recompute
  10. 2026-09-29 16:13 UTCGHSA enrichment
  11. 2026-09-29 15:24 UTCEPSS rescore
  12. 2026-09-29 02:07 UTCEG score recompute
  13. 2026-09-29 02:07 UTCGHSA enrichment
  14. 2026-09-28 14:18 UTCEG score recompute
  15. 2026-09-28 14:18 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 02:29 UTCGHSA enrichment
  18. 2026-09-27 14:42 UTCEG score recompute
  19. 2026-09-27 14:42 UTCGHSA enrichment
  20. 2026-09-27 13:48 UTCEPSS rescore
  21. 2026-09-27 02:29 UTCEG score recompute
  22. 2026-09-27 02:29 UTCGHSA enrichment
  23. 2026-09-26 15:59 UTCEPSS rescore
  24. 2026-09-26 00:28 UTCEPSS rescore
  25. 2026-09-25 09:10 UTCGHSA enrichment
  26. 2026-09-24 21:21 UTCEG score recompute
  27. 2026-09-24 21:21 UTCGHSA enrichment
  28. 2026-09-24 14:58 UTCEG score recompute
  29. 2026-09-24 14:58 UTCGHSA enrichment
  30. 2026-09-24 14:04 UTCEPSS rescore
  31. 2026-09-24 10:06 UTCGHSA enrichment
  32. 2026-09-23 22:19 UTCEG score recompute
  33. 2026-09-23 22:19 UTCGHSA enrichment
  34. 2026-09-23 17:54 UTCEPSS rescore
  35. 2026-09-23 10:31 UTCGHSA enrichment
  36. 2026-09-22 22:41 UTCEG score recompute
  37. 2026-09-22 22:41 UTCGHSA enrichment
  38. 2026-09-22 16:01 UTCEPSS rescore
  39. 2026-09-22 10:53 UTCGHSA enrichment
  40. 2026-09-21 23:06 UTCEG score recompute
  41. 2026-09-21 23:06 UTCGHSA enrichment
  42. 2026-09-21 21:09 UTCEPSS rescore
  43. 2026-09-21 11:17 UTCGHSA enrichment
  44. 2026-09-20 23:29 UTCEG score recompute
  45. 2026-09-20 23:29 UTCGHSA enrichment
  46. 2026-09-20 20:16 UTCEPSS rescore
  47. 2026-09-20 11:22 UTCGHSA enrichment
  48. 2026-09-19 23:33 UTCEG score recompute
  49. 2026-09-19 23:33 UTCGHSA enrichment
  50. 2026-09-19 11:45 UTCGHSA enrichment
  51. 2026-09-18 23:43 UTCEG score recompute
  52. 2026-09-18 23:42 UTCGHSA enrichment
  53. 2026-09-18 19:28 UTCEPSS rescore
  54. 2026-09-18 11:54 UTCGHSA enrichment
  55. 2026-09-18 00:07 UTCEG score recompute
  56. 2026-09-18 00:07 UTCGHSA enrichment
  57. 2026-09-17 11:15 UTCGHSA enrichment
  58. 2026-09-16 23:27 UTCEG score recompute
  59. 2026-09-16 23:27 UTCGHSA enrichment
  60. 2026-09-16 14:08 UTCEPSS rescore
  61. 2026-09-16 11:39 UTCEG score recompute
  62. 2026-09-16 11:39 UTCGHSA enrichment
  63. 2026-09-16 05:15 UTCEPSS rescore
  64. 2026-09-15 23:42 UTCGHSA enrichment
  65. 2026-09-15 11:54 UTCEG score recompute
  66. 2026-09-15 11:54 UTCGHSA enrichment
  67. 2026-09-15 03:12 UTCEPSS rescore
  68. 2026-09-15 03:12 UTCEPSS rescore
  69. 2026-09-15 00:06 UTCGHSA enrichment
  70. 2026-09-14 12:18 UTCGHSA enrichment
  71. 2026-09-14 00:30 UTCEG score recompute
  72. 2026-09-14 00:30 UTCGHSA enrichment
  73. 2026-09-13 12:43 UTCGHSA enrichment
  74. 2026-09-13 00:55 UTCEG score recompute
  75. 2026-09-13 00:55 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77815?
CVE-2026-77815 is a high vulnerability published on August 21, 2026. 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…
When was CVE-2026-77815 disclosed?
CVE-2026-77815 was first published on August 21, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77815 actively exploited?
CVE-2026-77815 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77815?
CVE-2026-77815 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-77815?
An upstream fix for CVE-2026-77815 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-77815 are linked in the Vendor Advisories panel on this page.

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