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CVE-2022-35920

Improper Limitation of a Pathname to a Restricted Directory in sanic

8.3 HighFix available

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

1.20%Up 0.3 points since Aug 2, 2022
90%50%10%1%

What each source reports

CVE List Score used 8.3

Improper Limitation of a Pathname to a Restricted Directory in sanic

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Record
CVE-2022-35920
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-22
Updated
2026-11-02
EUVDEUVD-2022-6514 8.3

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Record
EUVD-2022-6514
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-8cw9-5hmv-77w6 8.3

sanic vulnerable to Path Traversal when using `app.static` if using encoded `%2F` URLs

Impact

Access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted.

Patches

  • v20.12.7 (LTS)
  • v21.12.2 (LTS)
  • v22.6.1

References

https://github.com/sanic-org/sanic/issues/2478 https://github.com/sanic-org/sanic/pull/2495

For more information

If you have any questions or comments about this advisory:

Record
GHSA-8cw9-5hmv-77w6
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-22
Updated
2026-11-02
NVD 8.3

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Record
CVE-2022-35920
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
OSV 8.3

Improper Limitation of a Pathname to a Restricted Directory in sanic

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

Record
CVE-2022-35920
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-22
Updated
2026-11-02
OSVGHSA-8cw9-5hmv-77w6 8.3

sanic vulnerable to Path Traversal when using `app.static` if using encoded `%2F` URLs

Impact

Access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted.

Patches

  • v20.12.7 (LTS)
  • v21.12.2 (LTS)
  • v22.6.1

References

https://github.com/sanic-org/sanic/issues/2478 https://github.com/sanic-org/sanic/pull/2495

For more information

If you have any questions or comments about this advisory:

Record
GHSA-8cw9-5hmv-77w6
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-22
Updated
2026-11-02
OSVPYSEC-2026-918 8.3

sanic vulnerable to Path Traversal when using `app.static` if using encoded `%2F` URLs

Impact

Access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted.

Patches

  • v20.12.7 (LTS)
  • v21.12.2 (LTS)
  • v22.6.1

References

https://github.com/sanic-org/sanic/issues/2478 https://github.com/sanic-org/sanic/pull/2495

For more information

If you have any questions or comments about this advisory:

Record
PYSEC-2026-918
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
sanic
PyPI
 22.0.0 up to 22.6.1
22.6.1
sanic
PyPI
 21.0.0 up to 21.12.2
21.12.2
sanic
PyPI
 before 20.12.7
20.12.7
sanic
PyPI
 22.0.0 up to 22.6.1, plus listed versions
22.3.022.3.122.3.222.6.0
22.6.1
sanic
PyPI
 21.0.0 up to 21.12.2, plus listed versions
21.12.021.12.121.3.021.3.121.3.2
Show 8 moreShow less
21.3.421.6.021.6.121.6.221.9.021.9.121.9.221.9.3
21.12.2
sanic
PyPI
 before 20.12.7, plus listed versions
0.1.00.1.10.1.30.1.40.1.5
Show 44 moreShow less
0.1.60.1.70.1.80.1.90.2.00.3.00.3.10.4.00.4.10.5.00.5.10.5.20.5.40.6.00.7.00.8.00.8.10.8.20.8.318.12.019.12.019.12.219.12.319.12.419.12.519.3.119.6.019.6.219.6.319.9.020.12.020.12.120.12.220.12.320.12.420.12.520.12.620.3.020.6.020.6.120.6.220.6.320.9.020.9.1
20.12.7
sanic
PyPI
 before 20.12.7, 22.0.0 up to 22.6.1, 21.0.0 up to 21.12.2, plus listed versions
0.1.00.1.10.1.30.1.40.1.5
Show 45 moreShow less
0.1.60.1.70.1.80.1.90.2.00.3.00.3.10.4.00.4.10.5.00.5.10.5.20.5.40.6.00.7.00.8.00.8.10.8.20.8.318.12.019.12.019.12.219.12.319.12.419.12.519.3.119.6.019.6.219.6.319.9.020.12.020.12.120.12.220.12.320.12.420.12.520.12.620.3.020.6.020.6.120.6.220.6.320.9.020.9.121.12.0
20.12.722.6.121.12.2

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-35920 is a high vulnerability (CVSS 8.3) in Sanic-org Sanic, published August 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. Fixed in sanic 22.6.1.

References

This page doesn't list everything

Left out here: 16 versions. The JSON record has them.

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