CVE-2026-79312
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads...
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
CVE-2026-79312- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
EUVDEUVD-2026-84489
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
EUVD-2026-84489- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wpfv-47p6-jfvh
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads...
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
GHSA-wpfv-47p6-jfvh- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
NVD
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
CVE-2026-79312- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-79312
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
DEBIAN-CVE-2026-79312- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-79312
webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
- Record
UBUNTU-CVE-2026-79312- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
webpyDebian:12 |
All versions, plus listed versions 1:0.62-41:0.62-4+deb12u11:0.62-51:0.62-61:0.70-11:0.76-1 |
None known |
webpyDebian:13 |
All versions, plus listed versions 1:0.62-61:0.70-11:0.76-1 |
None known |
webpyDebian:14 |
All versions, plus listed versions 1:0.62-61:0.70-11:0.76-1 |
None known |
webpyUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1:0.37+20120626-11:0.37+20120626-1ubuntu0.1~esm1 |
None known |
webpyUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:0.38-11:0.38+20170615-11:0.38+20170615-1ubuntu0.1~esm1 |
None known |
webpyUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1:0.39+20181101-11:0.40-21:0.40-2ubuntu0.1~esm1 |
None known |
webpyUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1:0.61-11:0.61-1ubuntu0.1~esm1 |
None known |
webpyUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 1:0.62-41:0.62-4ubuntu0.1~esm1 |
None known |
webpyUbuntu:26.10 |
All versions, plus listed versions 1:0.62-61:0.70-11:0.76-1 |
None known |
webpyUbuntu:26.04:LTS |
All versions, plus listed versions 1:0.62-6 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-79312 is a medium vulnerability (CVSS 6.8) in webpy, published September 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.