CVE-2026-54706

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (25th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. This issue is fixed in version 2.6.4.

CVSS v3
4.8
EG Score
4.8MEDIUMmedium confidence
EG Risk
38
EG Risk 38/100CISA 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
Severity48% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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

July 31, 2026

Last Modified

September 10, 2026

Advisory Details (3)

Auto-updated Jul 31, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

OnionShare 2.6.4

Patch available: onionshare/onionshare v2.6.4

https://github.com/onionshare/onionshare/releases/tag/v2.6.4
github_commit

commit 48f31cfac077 (onionshare/onionshare)

Fix landed in onionshare/onionshare commit 48f31cfac077 — awaiting tagged release

https://github.com/onionshare/onionshare/commit/48f31cfac077fcc9c04c67c2a6dbf87d956f5eec
github Patch Available🟡 PoC Available

OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files · Advisory · onionshare/onionshare · GitHub

https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf

Vendor Advisories for CVE-2026-54706(1)

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

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
onionshare2.2-3 ... 2.6.4-1 (23 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
onionshare2.6-4 ... 2.6.4-2 (16 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
onionshare2.6.3-1
  • every version up to 2.6.3-1+deb13u2: fixed in 2.6.3-1+deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
onionshare2.6.3-1, 2.6.3-2, 2.6.3-3, 2.6.3-4
  • every version up to 2.6.4-1: fixed in 2.6.4-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
onionshare-cli2.3 ... 2.6.3 (8 versions)
  • every version up to 2.6.4: fixed in 2.6.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 46× 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 112 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54706?
CVE-2026-54706 is a medium vulnerability published on July 31, 2026. OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo() and…
When was CVE-2026-54706 disclosed?
CVE-2026-54706 was first published on July 31, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54706 actively exploited?
CVE-2026-54706 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54706?
CVE-2026-54706 has a CVSS base score of 4.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54706?
A fix for CVE-2026-54706 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54706 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54706

Explore →

Is Your Infrastructure Affected by CVE-2026-54706?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs