CVE-2026-25047 json
deepHas vulnerable to Prototype Pollution via constructor.prototype
published 9mo ago modified 4mo ago also EUVD-2026-4946 , GHSA-2733-6c58-pf27
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 1
- Exploit-DB
Summary
deepHas provides a test for the existence of a nested object key and optionally returns that key. A prototype pollution vulnerability exists in version 1.0.7 of the deephas npm package that allows an attacker to modify global object behavior. This issue was fixed in version 1.0.8.
Patch / fix
- npm deephas 1.0.8
- deephas_project deephas 1.0.7
- sharpred deephas 1.0.7
Is CVE-2026-25047 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 FencerTimeline
- Published
- First public exploit (EDB-52528)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 9mo ago
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-52528 deephas 1.0.7 - Prototype Pollution webapps, 2026-04-30
- github.com https://github.com/sharpred/deepHas/security/advisories/GHSA-2733-6c58-pf27 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | deephas | <1.0.8 |
1.0.8 |
Affected products
- sharpred deepHas
Classification
- Weakness
-
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
References
-
github.com
/sharpred/deepHas/commit/8097fafd3776c613d8066546653e0d2c7b5fc465
web, patch
-
github.com
/sharpred/deepHas/security/advisories/GHSA-2733-6c58-pf27
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-25047
advisory
-
github.com
/sharpred/deepHas
package
Sources
- CVE List CVE-2026-25047
- GitHub Advisory GHSA-2733-6c58-pf27
- NVD CVE-2026-25047
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.