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CVE-2026-39113

MediumPublished

Buffer Overflow vulnerability in SQLite affected version source snapshots/builds containing Fossil check-in...

Published: Aug 25, 2026
Updated: Aug 31, 2026
Assigning CNA: mitre
Evidence observed: Aug 28, 2026

Primary CVSS

4.0/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS probability estimate

0.2%

Low · next 30 days

Percentile: 11.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Buffer Overflow vulnerability in SQLite affected version source snapshots/builds containing Fossil check-in 8bdc0d485e3ad0c7a1e818da66f106951d496b05cbe61d12c2c448f2f24b6d5d (Git mirror 169f68ed88b34cb68f720191c64c058f2ccec508, 2026-03-11) and later snapshots/builds allows an attacker to cause a denial of service via the ext/misc/sqlar.c, sqlarUncompressFunc(), sqlar_uncompress(), sqlite3_value_int64(), sqlite3_malloc(int), uncompress() components

Sources

CVE-2026-39113PoC
Advisory and AddressSanitizer reproducer for a SQLite SQLAR heap-buffer-overflow triggered by a crafted SZ value causing truncated allocation and zlib out-of-bounds write.

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