How severe is CVE-2016-5026?

CVE-2016-5026 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-5026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5026?

CVE-2016-5026 affects Onionshare. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-5026 published?

CVE-2016-5026 was published on 2017-01-30 and last updated on 2026-06-17.

CVE-2016-5026

CVE-2016-5026 is a medium-severity vulnerability in Onionshare with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Onionshare
Published: 2017-01-30
Last modified: 2026-06-17

Description

hs.py in OnionShare before 0.9.1 allows local users to modify the hiddenservice by pre-creating the /tmp/onionshare directory.

Frequently asked questions

What is CVE-2016-5026?: hs.py in OnionShare before 0.9.1 allows local users to modify the hiddenservice by pre-creating the /tmp/onionshare directory.
How severe is CVE-2016-5026?: CVE-2016-5026 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-5026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5026?: CVE-2016-5026 affects Onionshare. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-5026 published?: CVE-2016-5026 was published on 2017-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*

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