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16 vulnerabilities found for libexpat by libexpat project
CVE-2026-41080 (GCVE-0-2026-41080)
Vulnerability from nvd – Published: 2026-04-16 16:52 – Updated: 2026-04-18 02:33
VLAI?
Summary
libexpat before 2.7.6 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Severity ?
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.6
(semver)
|
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CVE-2026-32778 (GCVE-0-2026-32778)
Vulnerability from nvd – Published: 2026-03-16 07:02 – Updated: 2026-03-17 14:39
VLAI?
Summary
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
|
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CVE-2026-32777 (GCVE-0-2026-32777)
Vulnerability from nvd – Published: 2026-03-16 06:58 – Updated: 2026-03-16 14:55
VLAI?
Summary
libexpat before 2.7.5 allows an infinite loop while parsing DTD content.
Severity ?
4 (Medium)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
|
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CVE-2026-32776 (GCVE-0-2026-32776)
Vulnerability from nvd – Published: 2026-03-16 06:54 – Updated: 2026-03-16 14:58
VLAI?
Summary
libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.
Severity ?
4 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
|
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CVE-2026-25210 (GCVE-0-2026-25210)
Vulnerability from nvd – Published: 2026-01-30 06:40 – Updated: 2026-02-03 16:42
VLAI?
Summary
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Severity ?
6.9 (Medium)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.4
(semver)
|
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CVE-2026-24515 (GCVE-0-2026-24515)
Vulnerability from nvd – Published: 2026-01-23 07:46 – Updated: 2026-01-23 15:31
VLAI?
Summary
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.4
(semver)
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CVE-2025-66382 (GCVE-0-2025-66382)
Vulnerability from nvd – Published: 2025-11-28 00:00 – Updated: 2026-04-09 18:00
VLAI?
Summary
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
Severity ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , ≤ 2.7.5
(semver)
|
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CVE-2025-59375 (GCVE-0-2025-59375)
Vulnerability from nvd – Published: 2025-09-15 00:00 – Updated: 2025-11-04 21:13
VLAI?
Summary
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Severity ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.2
(semver)
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CVE-2026-41080 (GCVE-0-2026-41080)
Vulnerability from cvelistv5 – Published: 2026-04-16 16:52 – Updated: 2026-04-18 02:33
VLAI?
Summary
libexpat before 2.7.6 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Severity ?
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.6
(semver)
|
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CVE-2026-32778 (GCVE-0-2026-32778)
Vulnerability from cvelistv5 – Published: 2026-03-16 07:02 – Updated: 2026-03-17 14:39
VLAI?
Summary
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
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CVE-2026-32777 (GCVE-0-2026-32777)
Vulnerability from cvelistv5 – Published: 2026-03-16 06:58 – Updated: 2026-03-16 14:55
VLAI?
Summary
libexpat before 2.7.5 allows an infinite loop while parsing DTD content.
Severity ?
4 (Medium)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
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CVE-2026-32776 (GCVE-0-2026-32776)
Vulnerability from cvelistv5 – Published: 2026-03-16 06:54 – Updated: 2026-03-16 14:58
VLAI?
Summary
libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.
Severity ?
4 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.5
(semver)
|
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CVE-2026-25210 (GCVE-0-2026-25210)
Vulnerability from cvelistv5 – Published: 2026-01-30 06:40 – Updated: 2026-02-03 16:42
VLAI?
Summary
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Severity ?
6.9 (Medium)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.4
(semver)
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CVE-2026-24515 (GCVE-0-2026-24515)
Vulnerability from cvelistv5 – Published: 2026-01-23 07:46 – Updated: 2026-01-23 15:31
VLAI?
Summary
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.4
(semver)
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CVE-2025-66382 (GCVE-0-2025-66382)
Vulnerability from cvelistv5 – Published: 2025-11-28 00:00 – Updated: 2026-04-09 18:00
VLAI?
Summary
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
Severity ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , ≤ 2.7.5
(semver)
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CVE-2025-59375 (GCVE-0-2025-59375)
Vulnerability from cvelistv5 – Published: 2025-09-15 00:00 – Updated: 2025-11-04 21:13
VLAI?
Summary
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Severity ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.2
(semver)
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