RHSA-2026:7369
Vulnerability from csaf_redhat - Published: 2026-04-10 09:46 - Updated: 2026-04-25 02:11Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in libsodium and pynacl. When processing untrusted data in specific cryptographic operations, the library's crypto_core_ed25519_is_valid_point function incorrectly validates elliptic curve points. This improper validation could allow an attacker to bypass security checks, potentially leading to a compromise of data integrity or the disclosure of sensitive information in certain custom cryptographic implementations.
4.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7369
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
References
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"vulnerabilities": [
{
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"name": "Incomplete List of Disallowed Inputs"
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"discovery_date": "2025-12-31T06:00:44.804514+00:00",
"ids": [
{
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"text": "2426416"
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"notes": [
{
"category": "description",
"text": "A flaw was found in libsodium and pynacl. When processing untrusted data in specific cryptographic operations, the library\u0027s crypto_core_ed25519_is_valid_point function incorrectly validates elliptic curve points. This improper validation could allow an attacker to bypass security checks, potentially leading to a compromise of data integrity or the disclosure of sensitive information in certain custom cryptographic implementations.",
"title": "Vulnerability description"
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"text": "libsodium: pynacl: libsodium: Improper validation of elliptic curve points could lead to data integrity or information disclosure.",
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{
"category": "other",
"text": "This vulnerability is rated Moderate for Red Hat products as it primarily affects atypical use cases involving custom cryptographic implementations or untrusted data processing with `crypto_core_ed25519_is_valid_point`. Standard libsodium deployments are not expected to be impacted by this flaw.",
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{
"category": "external",
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"url": "https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae"
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"scores": [
{
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"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
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],
"title": "libsodium: pynacl: libsodium: Improper validation of elliptic curve points could lead to data integrity or information disclosure."
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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