MEDIUM
CVE-2016-5026
CWE-284Published: January 30, 2017· Updated: Jun 17, 2026
5.5
CVSS v3.1
Official Description
hs.py in OnionShare before 0.9.1 allows local users to modify the hiddenservice by pre-creating the /tmp/onionshare directory.
Technical Analysis
CVE-2016-5026 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
onionshare1 product(s)
onionshare
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
http://www.openwall.com/lists/oss-security/2016/05/23/5Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/05/24/9Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/90821Third Party Advisory · VDB Entry
→
https://github.com/micahflee/onionshareIssue Tracking · Patch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/05/23/5Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/05/24/9Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/90821Third Party Advisory · VDB Entry
→
https://github.com/micahflee/onionshareIssue Tracking · Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2016-5026
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-284
CISA KEVNo
Affected1 vendor(s)
PublishedJan 30, 2017
Related CVEs (CWE-284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-5026 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.