CVE-2026-45820
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
fflate through 0.8.2 is vulnerable to denial of service via an infinite loop in unzipSync(). A crafted ZIP archive with a central directory entry declaring compressed_size=0xFFFFFFFF (ZIP64 sentinel) but missing the required ZIP64 extra field tag 0x0001 causes z64e() to loop indefinitely due to out-of-bounds reads returning undefined, which coerces to 0, keeping the loop condition permanently true.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
fflate
- Vendor
- 101arrowz
- Product
- fflate
- Platforms
- Linux
- macOS
- Windows
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0.4.5 | affected | semver | Unavailable | 0.4.8 | None listed |
| 0.5.0 | affected | semver | Unavailable | 0.5.3 | None listed |
| 0.6.0 | affected | semver | Unavailable | 0.6.10 | None listed |
| 0.7.0 | affected | semver | Unavailable | 0.7.4 | None listed |
| 0.8.0 | affected | semver | Unavailable | 0.8.2 | None listed |