TI-2026-68406 Aliases CVE-2026-75818 GHSA-93mw-x5wh-jf8f

Heap buffer overflow in GNU Aspell prezip-bin decompressor

LOW 9CWE-122Published 2026-10-06 · Updated 2026-10-06

Key facts

Attack vector: Local
Privileges required: None
User interaction: Active
Attack complexity: High
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: Partial Red Hat: 5 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

GNU Aspell prezip-bin before 0.60.8.3 contains a heap-based buffer overflow in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds reads and writes on the heap. An attacker who convinces a local user to process a malicious compressed file with prezip-bin can corrupt memory and crash the process.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

GNU Aspell prezip-bin contains a heap-based buffer overflow vulnerability in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds read and write operations on the heap. An attacker who convinces a user to process a malicious compressed file with prezip-bin can trigger memory corruption, leading to a processs crash. This issue was fixed in commit 15b188437f9e0192d4ac4472ad66a4e2f62a782f which will be released in version 0.60.8.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00146 3rd percentileScored 2026-11-07

Fix Partial Aspell (GNU): 0.60.8.3Red Hat: 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
GNU	Aspell	before 0.60.8.3	0.60.8.3	Patch available	CNA

Aspell VendorGNU Affected before 0.60.8.3 Fixed in 0.60.8.3 Patch available CNA

Remediation

Upgrade GNU Aspell to version 0.60.8.3, which contains the fix. Red Hat lists Red Hat Enterprise Linux 6 as affected with no fix planned, and Red Hat Enterprise Linux 7, 8, 9 and 10 as affected with no fix available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA Aspell (GNU) Fixed in 0.60.8.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-06
GNU Aspell 0.60.8.3
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-68408 Integer truncation leads to heap corruption in GNU AspellPriority LOW 9
- TI-2026-68407 Out-of-bounds read in GNU Aspell dictionary loadingPriority LOW 9
Show all 3 records →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred

Timeline

2026-10-06 Threatist record created from CVE-2026-75818
2026-10-06 Alias added: GHSA-93mw-x5wh-jf8f
2026-10-07 Affected versions changed · Red Hat

References

Advisory 1

https://cert.pl/en/posts/2026/10/CVE-2026-75818

Other 1

http://aspell.net/

TI-2026-19388 telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root"… KEVCVSS 3.1CRITICAL 9.8
TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
TI-2014-05164 GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the… KEVCVSS 3.1HIGH 8.8
TI-2023-04522 Glibc: buffer overflow in ld.so leading to privilege escalation KEVCVSS 3.1HIGH 7.8
TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8

See all 1272 →

Sources

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