CVE-2026-49136

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-01. 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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

Banana Slides through 0.4.0, patched in commit e8bc490, contains a path traversal vulnerability in the generate_image() function within the AI service backend that allows unauthenticated attackers to read arbitrary image-format files outside the intended uploads directory by exploiting an incomplete path prefix check using os.path.startswith() without a trailing separator. Attackers can supply crafted markdown image references in user-controlled page descriptions that resolve to sibling directories whose names share the uploads folder prefix, bypassing the directory confinement check and causing the application to read files from unintended locations via PIL Image.open().

CVSS v3
7.5
EG Score
7.5(medium)
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
0%
EPSS %ILE
35%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (4)

Auto-updated Jun 6, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

Banana Slides 0.4.0 Path Traversal via generate_image() in ai_service.py | Advisories | VulnCheck

https://www.vulncheck.com/advisories/banana-slides-path-traversal-via-generate-image-in-ai-service-py
github_commit

commit e8bc490ec8b4 (Anionex/banana-slides)

Fix landed in Anionex/banana-slides commit e8bc490ec8b4 — awaiting tagged release

https://github.com/Anionex/banana-slides/commit/e8bc490ec8b4b657e07dc3ab4e94fbedcaade421
github_pr

fix(security): block sibling-prefix path traversal in /files image refs

Fix merged in Anionex/banana-slides PR #430 on 2026-05-31 — awaiting tagged release

https://github.com/Anionex/banana-slides/pull/430
generic

banana-slides Path Traversal via Missing Trailing Separator in startswith() Check · Issue #429 · Anionex/banana-slides · GitHub

https://github.com/Anionex/banana-slides/issues/429

Vendor Advisories for CVE-2026-49136(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 26× in last 7d / 77× 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 197 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49136?
CVE-2026-49136 is a high vulnerability published on June 1, 2026. Banana Slides through 0.4.0, patched in commit e8bc490, contains a path traversal vulnerability in the generate_image() function within the AI service backend that allows unauthenticated attackers to read arbitrary image-format files outside the intended uploads directory by exploiting an…
When was CVE-2026-49136 disclosed?
CVE-2026-49136 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49136 actively exploited?
CVE-2026-49136 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.3% of all scored CVEs.
What is the CVSS score of CVE-2026-49136?
CVE-2026-49136 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-49136?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49136, 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.

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