phpecc, as used in paragonie/phpecc before 2.0.1, has a branch-based timing leak in Point…
Priority LOW 20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
phpecc, as used in paragonie/phpecc before 2.0.1, has a branch-based timing leak in Point addition. (This is related to phpecc/phpecc on GitHub, and the Matyas Danter ECC library.)
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00408 35th percentileScored 2026-11-07
Fix Fixed paragonie/ecc (Packagist): 2.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | paragonie/ecc (Packagist) | before 2.0.1 | 2.0.1 | Patch available | GHSA-3494-cfwf-56hw |
| — | mdanter/ecc (Packagist) | up to 1.0.0 | — | No fix listed | GHSA-3494-cfwf-56hw |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- paragonie/ecc (Packagist) Vendor— Affected before 2.0.1 Fixed in 2.0.1 Patch available GHSA-3494-cfwf-56hw
- mdanter/ecc (Packagist) Vendor— Affected up to 1.0.0 Fixed in — No fix listed GHSA-3494-cfwf-56hw
Remediation
- Fix · GHSA-3494-cfwf-56hw paragonie/ecc (Packagist) Fixed in 2.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-33851
- 2026-10-03 Alias added: GHSA-3494-cfwf-56hw
References
Sources
- CVE-2024-33851 · CVE Program
- CVE-2024-33851 · NVD
- FIRST EPSS
- GHSA-3494-cfwf-56hw · GitHub Advisory Database · CC BY 4.0
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