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: 0.2%, top 84% of all CVEs by exploit prediction. 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%CVSS: 4.8Exploit: Elevated riskExposed: 0

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

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
4.8(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 31, 2026

Last Modified

July 31, 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 rangeFixed inDependents
onionshare2.2-3 ... 2.6.4-1 (23 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
onionshare2.6-4 ... 2.6.4-1 (15 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
onionshare2.6.3-1 ... 2.6.4-1 (6 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
onionshare2.6.3-1, 2.6.3-2, 2.6.3-3, 2.6.3-42.6.4-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
onionshare-cli2.3 ... 2.6.3 (8 versions)2.6.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 41× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-19 22:25 UTCEG score recompute
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-19 00:38 UTCEG score recompute
  5. 2026-08-18 13:48 UTCEPSS rescore
  6. 2026-08-18 02:44 UTCEG score recompute
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 04:59 UTCEG score recompute
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 07:14 UTCEG score recompute
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 09:29 UTCEG score recompute
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 11:43 UTCEG score recompute
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-12 16:12 UTCEG score recompute
  17. 2026-08-12 13:51 UTCEPSS rescore
  18. 2026-08-11 18:27 UTCEG score recompute
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-09 22:57 UTCEG score recompute
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-09 01:12 UTCEG score recompute
  23. 2026-08-08 16:37 UTCEPSS rescore
  24. 2026-08-08 03:26 UTCEG score recompute
  25. 2026-08-07 05:41 UTCEG score recompute
Show 16 more
  1. 2026-08-06 13:47 UTCEPSS rescore
  2. 2026-08-06 07:56 UTCEG score recompute
  3. 2026-08-05 19:17 UTCEPSS rescore
  4. 2026-08-05 10:11 UTCEG score recompute
  5. 2026-08-04 15:10 UTCEPSS rescore
  6. 2026-08-04 12:26 UTCEG score recompute
  7. 2026-08-04 10:39 UTCEPSS rescore
  8. 2026-08-03 12:50 UTCEG score recompute
  9. 2026-08-03 10:36 UTCEPSS rescore
  10. 2026-08-02 14:56 UTCEG score recompute
  11. 2026-08-02 02:27 UTCEPSS rescore
  12. 2026-07-31 19:25 UTCEG score recompute
  13. 2026-07-31 19:08 UTCEG score recompute
  14. 2026-07-31 17:33 UTCEG score recompute
  15. 2026-07-31 17:00 UTCEG score recompute
  16. 2026-07-31 16:58 UTCMITRE cvelistV5first tracked

Related CVEs(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 in the National Vulnerability Database on July 31, 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% probability of exploitation in the next 30 days, which ranks it in the top 84.2% of all scored CVEs.
What is the CVSS score of CVE-2026-54706?
CVE-2026-54706 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-54706?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54706, 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

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.

Start Free Scan →Browse All CVEs