Critical severity · published Jan 27, 2026
CVE-2026-24800
A heap-based buffer over-read or buffer overflow in tildearrow/furnace
10.0
CVSS
0.3%
EPSS
No
On KEV
Description
Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow furnace (extern/zlib modules). This vulnerability is associated with program files inflate.C.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FU
furnace · tildearrow
before 0.6.8.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-24800
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-24800
github.com
https://github.com/tildearrow/furnace/pull/2471
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