CVE-2026-44971 json
GuardDog: Blind GitHub URL rewrite in remote project scanning causes SSRF and `GH_TOKEN` exfiltration
published 5mo ago modified 14d ago also EUVD-2026-32535 , GHSA-587r-mc96-6f2p , PYSEC-2026-2505
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
GuardDog is a CLI tool to identify malicious PyPI packages. From 1.0.0 to 2.9.0, the programmatic remote project scanning path rewrites attacker-controlled repository URLs using a blind string replacement and then sends the caller's GitHub credentials with the resulting request. This allows an attacker who can influence the scanned repository URL to trigger SSRF and capture the GH_TOKEN used by GuardDog. This vulnerability is fixed in .
Is CVE-2026-44971 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/DataDog/guarddog/security/advisories/GHSA-587r-mc96-6f2p referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| GitHub | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| OSV | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | guarddog | >=1.0.0, <=2.9.0 |
no fix listed |
Affected products
- DataDog guarddog
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/DataDog/guarddog/security/advisories/GHSA-587r-mc96-6f2p
exploit, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-44971
advisory
-
github.com
/DataDog/guarddog
package
-
pypi.org
/project/guarddog
package
-
github.com
/advisories/GHSA-587r-mc96-6f2p
advisory
Sources
- CVE List CVE-2026-44971
- GitHub Advisory GHSA-587r-mc96-6f2p
- NVD CVE-2026-44971
- OSV PYSEC-2026-2505
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.