CVE-2026-11822: SQLite before 3.53.2 Out-of-Bounds Read in FTS5 fts5LeafSeek
Vulnerability summary
CVE-2026-11822 is a medium (CVSS 6.8) Heap-based Buffer Overflow vulnerability in sqlite. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9.2% of scored vulnerabilities.
Not severe (CVSS 6.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 26 · Related 9Timeline
- 09-06-2026PublishedVulnerability first disclosed.
- 30-10-2026Last modifiedVulnerability information updated.
Description
SQLite before 3.53.2 contains an out-of-bounds read vulnerability in the FTS5 full-text search extension that allows attackers to crash the process by supplying a crafted database with a malformed FTS5 leaf page. Attackers can set an oversized term length in the leaf page so that fts5LeafSeek() reads past the end of the page buffer while comparing terms during an FTS5 MATCH query, in applications compiled with SQLITE_ENABLE_FTS5.
CVSS metrics
9 scores · 6 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- NVDNIST6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
Decrease -0.10 pp
From 0.29% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat7 products
- mingw-sqlite< 0:3.26.0.0-3.el8_10
- mingw32-sqlite< 0:3.26.0.0-3.el8_10
- mingw32-sqlite-debuginfo< 0:3.26.0.0-3.el8_10
- mingw32-sqlite-static< 0:3.26.0.0-3.el8_10
- mingw64-sqlite< 0:3.26.0.0-3.el8_10
Ubuntu2 products
- sqliteAll versions (No fix recorded)
- sqlite3All versions (No fix recorded) | < 3.37.2-2ubuntu0.6 | < 3.45.1-1ubuntu2.6 | < 3.46.1-8ubuntu0.1 | < 3.46.1-9ubuntu0.1
Alpine1 product
- sqlite< 3.53.4-r0
Debian1 product
- sqlite3All versions (No fix recorded) | < 3.46.1-7+deb13u2 | < 3.53.2-1
Sqlite1 product
- sqlite< 3.53.2
5 vendors · 12 products
References
18 links- www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extensionThird Party AdvisoryARTICLEREPORT
