Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN randomness because Docker containers share the same mac
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 1.9% (FIRST EPSS); higher than 79.2% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: python-werkzeug (Debian:12) 0.15.6+dfsg1-1; python-Werkzeug (openSUSE:Leap 15.0) 0.12.2-lp150.2.3.1; python-Werkzeug-doc (openSUSE:Leap 15.0) 0.12.2-lp150.2.3.1.
Low priority for now. Upgrade to python-werkzeug (Debian:12) 0.15.6+dfsg1-1; python-Werkzeug (openSUSE:Leap 15.0) 0.12.2-lp150.2.3.1; python-Werkzeug-doc (openSUSE:Leap 15.0) 0.12.2-lp150.2.3.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN randomness because Docker containers share the same machine id.
- Published
- Aug 9, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.9% · 79th percentile
- CWE
- CWE-331
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.9%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Running WordPress? Scan your site free with WP Lens
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| palletsprojects | werkzeug | cpe:2.3:a:palletsprojects:werkzeug |
| opensuse | leap | cpe:2.3:o:opensuse:leap |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- opensuse leap15.0
- opensuse leap15.1
- palletsprojects werkzeugbefore 0.15.3
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | python-werkzeug | before 0.15.6+dfsg1-1 | 0.15.6+dfsg1-1 |
| openSUSE:Leap 15.0 | python-Werkzeug | before 0.12.2-lp150.2.3.1 | 0.12.2-lp150.2.3.1 |
| openSUSE:Leap 15.0 | python-Werkzeug-doc | before 0.12.2-lp150.2.3.1 | 0.12.2-lp150.2.3.1 |
| openSUSE:Leap 15.1 | python-Werkzeug | before 0.14.1-lp151.2.3.1 | 0.14.1-lp151.2.3.1 |
| openSUSE:Leap 15.1 | python-Werkzeug-doc | before 0.14.1-lp151.2.3.1 | 0.14.1-lp151.2.3.1 |
| openSUSE:Tumbleweed | python-Werkzeug | before 3.1.9-1.1 | 3.1.9-1.1 |
| openSUSE:Tumbleweed | python-Werkzeug | before 2.0.1-1.2 | 2.0.1-1.2 |
| openSUSE:Tumbleweed | python-Werkzeug | before 3.0.3-1.1 | 3.0.3-1.1 |
| PyPI | werkzeug | before 0.15.3 | 0.15.3 |
| SUSE:Linux Enterprise Module for Basesystem 15 | python-Werkzeug | before 0.12.2-3.3.1 | 0.12.2-3.3.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP1 | python-Werkzeug | before 0.14.1-6.3.1 | 0.14.1-6.3.1 |
| SUSE:Linux Enterprise Module for Public Cloud 12 | python-Werkzeug | before 0.12.2-10.10.1 | 0.12.2-10.10.1 |
| SUSE:OpenStack Cloud 9 | python-Werkzeug | before 0.14.1-3.3.1 | 0.14.1-3.3.1 |
Same product
palletsprojects: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-14322In Pallets Werkzeug before 0.15.5, SharedDataMiddleware mishandles drive names (such as C:) in Windows pathnames.47Plan
- CVE-2022-29361Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HT41Plan
- CVE-2024-34069Werkzeug's improper usage of a pathname and improper CSRF protection results in the remote command execution31Monitor
- CVE-2023-46136Werkzeug vulnerable to high resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning30Monitor
- CVE-2023-25577Werkzeug may allow high resource usage when parsing multipart form data with many fields30Monitor
- CVE-2026-27199Werkzeug safe_join() allows Windows special device names25Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:python-werkzeug | 0.15.6+dfsg1-1 · Debian:12 | Package registry (OSV) |
| opensuse:python-Werkzeug | 0.12.2-lp150.2.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:python-Werkzeug-doc | 0.12.2-lp150.2.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| PyPI:werkzeug | 0.15.3 | Package registry (OSV) |
| suse:python-Werkzeug | 0.12.2-3.3.1 · SUSE:Linux Enterprise Module for Basesystem 15 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-331 · Insufficient EntropyCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (4 more)Show less
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00034.html
- github.com/pallets/werkzeug/blob/7fef41b120327d3912fbe12fb64f1951496fcf3e/src/werkzeug/debug/__init__.py#L168
- github.com/pallets/werkzeug/commit/00bc43b1672e662e5e3b8cecd79e67fc968fa246
- palletsprojects.com/blog/werkzeug-0-15-3-released/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.