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CVE-2026-75820 (GCVE-0-2026-75820)

Vulnerability from nvd – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:49 X_Open Source

Title

Integer Truncation Leading to Heap Corruption in GNU Aspell

Summary

GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a multiple of 256. This leads to heap corruption. An attacker can exploit this by convincing a user to run aspell with a crafted personal wordlist containing such a word, resulting in denial of service. This issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:49 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver) cpe:2.3:a:gnu:aspell::::::::

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2026-75819 (GCVE-0-2026-75819)

Vulnerability from nvd – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:50 X_Open Source

Title

Out-of-bounds Read in GNU Aspell

Summary

GNU Aspell contains an out-of-bounds read vulnerability in ReadOnlyDict::load() in readonly_ws.cpp. When loading a binary .rws dictionary file, it uses offset fields from the file header as byte indices into a heap buffer without validating their bounds. An attacker can trigger this by convincing a user to run aspell with a crafted dictionary file supplied through --master, --dict-dir, or configuration options, leading to heap memory disclosure or a denial of service via application crash. This issue was fixed in commit 941953b25031bc9104e83f58e138a664b8dedc3f which will be released in version 0.60.8.3.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:50 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver)

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2026-75818 (GCVE-0-2026-75818)

Vulnerability from nvd – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:50 X_Open Source

Title

Heap Buffer Overflow in GNU Aspell's prezip utility

Summary

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.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:50 UTC

CWE

CWE-122 - Heap-based buffer overflow

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver) cpe:2.3:a:gnu:aspell::::::::

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2019-25051 (GCVE-0-2019-25051)

Vulnerability from nvd – Published: 2021-07-20 06:46 – Updated: 2024-08-05 03:00

Summary

objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in acommon::ObjStack::dup_top (called from acommon::StringMap::add and acommon::Config::lookup_list).

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

6 references

URL	Tags
https://github.com/google/oss-fuzz-vulns/blob/mai…	x_refsource_MISC
https://github.com/gnuaspell/aspell/commit/0718b3…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2021/dsa-4948	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

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CVE-2019-20433 (GCVE-0-2019-20433)

Vulnerability from nvd – Published: 2020-01-27 14:03 – Updated: 2024-08-05 02:39

Summary

libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
http://aspell.net/buffer-overread-ucs.txt	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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CVE-2019-17544 (GCVE-0-2019-17544)

Vulnerability from nvd – Published: 2019-10-14 01:07 – Updated: 2024-08-05 01:40

Summary

libaspell.a in GNU Aspell before 0.60.8 has a stack-based buffer over-read in acommon::unescape in common/getdata.cpp via an isolated \ character.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

8 references

URL	Tags
https://github.com/GNUAspell/aspell/commit/80fa26…	x_refsource_MISC
https://github.com/GNUAspell/aspell/compare/rel-0…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://usn.ubuntu.com/4155-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4155-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4948	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

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CVE-2004-0548 (GCVE-0-2004-0548)

Vulnerability from nvd – Published: 2004-06-11 04:00 – Updated: 2024-08-08 00:24

Summary

Multiple stack-based buffer overflows in the word-list-compress functionality in compress.c for Aspell allow local users to execute arbitrary code via a long entry in the wordlist that is not properly handled when using the (1) "c" compress option or (2) "d" decompress option.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
http://www.securityfocus.com/bid/10497	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.gentoo.org/security/en/glsa/glsa-20040…	vendor-advisoryx_refsource_GENTOO
http://marc.info/?l=bugtraq&m=108675120224531&w=2	mailing-listx_refsource_BUGTRAQ

Date Public

2004-06-08 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2026-75820 (GCVE-0-2026-75820)

Vulnerability from cvelistv5 – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:49 X_Open Source

Title

Integer Truncation Leading to Heap Corruption in GNU Aspell

Summary

GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a multiple of 256. This leads to heap corruption. An attacker can exploit this by convincing a user to run aspell with a crafted personal wordlist containing such a word, resulting in denial of service. This issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:49 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver) cpe:2.3:a:gnu:aspell::::::::

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2026-75819 (GCVE-0-2026-75819)

Vulnerability from cvelistv5 – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:50 X_Open Source

Title

Out-of-bounds Read in GNU Aspell

Summary

GNU Aspell contains an out-of-bounds read vulnerability in ReadOnlyDict::load() in readonly_ws.cpp. When loading a binary .rws dictionary file, it uses offset fields from the file header as byte indices into a heap buffer without validating their bounds. An attacker can trigger this by convincing a user to run aspell with a crafted dictionary file supplied through --master, --dict-dir, or configuration options, leading to heap memory disclosure or a denial of service via application crash. This issue was fixed in commit 941953b25031bc9104e83f58e138a664b8dedc3f which will be released in version 0.60.8.3.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:50 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver)

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2026-75818 (GCVE-0-2026-75818)

Vulnerability from cvelistv5 – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:50 X_Open Source

Title

Heap Buffer Overflow in GNU Aspell's prezip utility

Summary

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.

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:50 UTC

CWE

CWE-122 - Heap-based buffer overflow

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver) cpe:2.3:a:gnu:aspell::::::::

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

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CVE-2019-25051 (GCVE-0-2019-25051)

Vulnerability from cvelistv5 – Published: 2021-07-20 06:46 – Updated: 2024-08-05 03:00

Summary

objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in acommon::ObjStack::dup_top (called from acommon::StringMap::add and acommon::Config::lookup_list).

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

6 references

URL	Tags
https://github.com/google/oss-fuzz-vulns/blob/mai…	x_refsource_MISC
https://github.com/gnuaspell/aspell/commit/0718b3…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2021/dsa-4948	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

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CVE-2019-20433 (GCVE-0-2019-20433)

Vulnerability from cvelistv5 – Published: 2020-01-27 14:03 – Updated: 2024-08-05 02:39

Summary

libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
http://aspell.net/buffer-overread-ucs.txt	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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CVE-2019-17544 (GCVE-0-2019-17544)

Vulnerability from cvelistv5 – Published: 2019-10-14 01:07 – Updated: 2024-08-05 01:40

Summary

libaspell.a in GNU Aspell before 0.60.8 has a stack-based buffer over-read in acommon::unescape in common/getdata.cpp via an isolated \ character.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

8 references

URL	Tags
https://github.com/GNUAspell/aspell/commit/80fa26…	x_refsource_MISC
https://github.com/GNUAspell/aspell/compare/rel-0…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://usn.ubuntu.com/4155-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4155-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4948	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

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CVE-2004-0548 (GCVE-0-2004-0548)

Vulnerability from cvelistv5 – Published: 2004-06-11 04:00 – Updated: 2024-08-08 00:24

Summary

Multiple stack-based buffer overflows in the word-list-compress functionality in compress.c for Aspell allow local users to execute arbitrary code via a long entry in the wordlist that is not properly handled when using the (1) "c" compress option or (2) "d" decompress option.

Severity

No CVSS data available.

CWE

n/a

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
http://www.securityfocus.com/bid/10497	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.gentoo.org/security/en/glsa/glsa-20040…	vendor-advisoryx_refsource_GENTOO
http://marc.info/?l=bugtraq&m=108675120224531&w=2	mailing-listx_refsource_BUGTRAQ

Date Public

2004-06-08 00:00

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria

14 vulnerabilities found for Aspell by GNU

CVE-2026-75820 (GCVE-0-2026-75820)

CVE-2026-75819 (GCVE-0-2026-75819)

CVE-2026-75818 (GCVE-0-2026-75818)

CVE-2019-25051 (GCVE-0-2019-25051)

CVE-2019-20433 (GCVE-0-2019-20433)

CVE-2019-17544 (GCVE-0-2019-17544)

CVE-2004-0548 (GCVE-0-2004-0548)

CVE-2026-75820 (GCVE-0-2026-75820)

CVE-2026-75819 (GCVE-0-2026-75819)

CVE-2026-75818 (GCVE-0-2026-75818)

CVE-2019-25051 (GCVE-0-2019-25051)

CVE-2019-20433 (GCVE-0-2019-20433)

CVE-2019-17544 (GCVE-0-2019-17544)

CVE-2004-0548 (GCVE-0-2004-0548)