CVE-2026-54707

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% 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
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: 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 does not enforce the Receive mode disable_files setting in cli/onionshare_cli/web/receive_mode.py, where ReceiveModeRequest._get_file_stream() writes multipart file[] data to disk despite the text-only setting. This issue is fixed in version 2.6.4.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity54% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 31, 2026

Last Modified

August 1, 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 a090e97193ef (onionshare/onionshare)

Fix landed in onionshare/onionshare commit a090e97193ef — awaiting tagged release

https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5
github Patch Available🟡 PoC Available

OnionShare Receive mode writes uploaded files even when file uploads are disabled · Advisory · onionshare/onionshare · GitHub

https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp

Vendor Advisories for CVE-2026-54707(1)

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

Affected Packages

(4 across 4 ecosystems)
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 13× in last 7d / 39× 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. 2026-08-20 12:41 UTCEG score recompute
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-19 10:43 UTCEG score recompute
  5. 2026-08-18 13:48 UTCEPSS rescore
  6. 2026-08-18 08:42 UTCEG score recompute
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 06:06 UTCEG score recompute
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 04:09 UTCEG score recompute
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 02:11 UTCEG score recompute
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 00:14 UTCEG score recompute
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-12 22:16 UTCEG score recompute
  17. 2026-08-12 13:51 UTCEPSS rescore
  18. 2026-08-11 20:18 UTCEG score recompute
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-09 16:22 UTCEG score recompute
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 14:24 UTCEG score recompute
  24. 2026-08-07 12:26 UTCEG score recompute
  25. 2026-08-06 13:47 UTCEPSS rescore
Show 14 more
  1. 2026-08-06 10:27 UTCEG score recompute
  2. 2026-08-05 19:17 UTCEPSS rescore
  3. 2026-08-05 08:29 UTCEG score recompute
  4. 2026-08-04 15:10 UTCEPSS rescore
  5. 2026-08-04 10:39 UTCEPSS rescore
  6. 2026-08-04 06:30 UTCEG score recompute
  7. 2026-08-03 10:36 UTCEPSS rescore
  8. 2026-08-02 02:31 UTCEG score recompute
  9. 2026-08-02 02:27 UTCEPSS rescore
  10. 2026-08-01 00:33 UTCEG score recompute
  11. 2026-07-31 23:40 UTCEG score recompute
  12. 2026-07-31 17:33 UTCEG score recompute
  13. 2026-07-31 17:00 UTCEG score recompute
  14. 2026-07-31 16:58 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-54707?
CVE-2026-54707 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 does not enforce the Receive mode disablefiles setting in cli/onionsharecli/web/receivemode.py, where…
When was CVE-2026-54707 disclosed?
CVE-2026-54707 was first published in the National Vulnerability Database on July 31, 2026, with the most recent update on August 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54707 actively exploited?
CVE-2026-54707 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 85.9% of all scored CVEs.
What is the CVSS score of CVE-2026-54707?
CVE-2026-54707 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-54707?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54707, 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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