CVE catalog

CVE-2026-103658

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Oct 12, 2026, 9:24:48 PM UTC
Updated: Oct 12, 2026, 11:17:19 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.21% · Oct 27, 2026

GNU Aspell 0.60.8.2 (first vulnerable version is not known) contains a heap-based buffer overflow write (CWE-122) in its read-only dictionary loader. String::reserve() in common/string.hpp computes its capacity check with a signed int ((int)s + 1), so a requested size of 0x7FFFFFFF wraps negative and the backing buffer is never grown. ReadOnlyDict::load() in modules/speller/default/readonly_ws.cpp passes the unvalidated 32-bit size fields from a .rws dictionary header into this path, so a crafted .rws file with a valid endian marker (12345678) and an oversized length field (e.g. lang_name_size = 0x7FFFFFFF) causes attacker-controlled data to be written out of bounds past an undersized heap allocation. An attacker who induces a victim to load a malicious dictionary - for example via aspell dump master <file> - can corrupt heap memory, resulting in denial of service and potentially code execution. Fixed in b830b6e and will be fixed in release 0.60.8.3.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	aspell	sid	`0.60.8.2-4`	fixed
Debian	aspell	forky	`0.60.8.2-3`	vulnerable
Debian	aspell	trixie	`0.60.8.1-4`	vulnerable
Debian	aspell	bookworm	`0.60.8-4`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	aspell	source	sid	`0.60.8.2-4`	not yet assigned	Not reported	[1150801]
Debian	aspell	source	forky	`(unfixed)`	not yet assigned	Not reported	[1150801]
Debian	aspell	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1150801]
Debian	aspell	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1150801]

[Debian bug #1150801]

Notes

[trixie] aspell: Minor issue [bookworm] aspell: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[aspell]Affected
Source package: [aspell]
Details (2)
- 0.60.8-4+b1 · amd64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
- 0.60.8-4+b1 · arm64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
[aspell-doc]Affected
Source package: [aspell]
Details (2)
- 0.60.8-4 · all · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
- 0.60.8-4 · all · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
[libaspell15]Affected
Source package: [aspell]
Details (2)
- 0.60.8-4+b1 · amd64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
- 0.60.8-4+b1 · arm64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
[libaspell-dev]Affected
Source package: [aspell]
Details (2)
- 0.60.8-4+b1 · amd64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
- 0.60.8-4+b1 · arm64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
[libpspell-dev]Affected
Source package: [aspell]
Details (2)
- 0.60.8-4+b1 · amd64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12
- 0.60.8-4+b1 · arm64 · bookworm
  Affected
  nvd · aspell · debian · bookworm; nvd · aspell · debian · 12

[Debian 13 (Trixie)]

[aspell]Affected
Details (2)
- 0.60.8.1-4 · amd64 · trixie
  Affected
  nvd · aspell · debian · 13
- 0.60.8.1-4 · arm64 · trixie
  Affected
  nvd · aspell · debian · 13
[aspell-doc]Affected
Source package: [aspell]
Details (2)
- 0.60.8.1-4 · all · trixie
  Affected
  nvd · aspell · debian · 13
- 0.60.8.1-4 · all · trixie
  Affected
  nvd · aspell · debian · 13
[libaspell15]Affected
Source package: [aspell]
Details (2)
- 0.60.8.1-4 · amd64 · trixie
  Affected
  nvd · aspell · debian · 13
- 0.60.8.1-4 · arm64 · trixie
  Affected
  nvd · aspell · debian · 13
[libaspell-dev]Affected
Source package: [aspell]
Details (2)
- 0.60.8.1-4 · amd64 · trixie
  Affected
  nvd · aspell · debian · 13
- 0.60.8.1-4 · arm64 · trixie
  Affected
  nvd · aspell · debian · 13
[libpspell-dev]Affected
Source package: [aspell]
Details (2)
- 0.60.8.1-4 · amd64 · trixie
  Affected
  nvd · aspell · debian · 13
- 0.60.8.1-4 · arm64 · trixie
  Affected
  nvd · aspell · debian · 13

Observed: Oct 24, 2026, 7:49:05 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]