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4 vulnerabilities by junkurihara
CVE-2026-26275 (GCVE-0-2026-26275)
Vulnerability from nvd – Published: 2026-02-19 21:25 – Updated: 2026-02-20 15:42
VLAI
Title
httpsig-hyper has Improper Digest Verification that May Allow Message Integrity Bypass
Summary
httpsig-hyper is a hyper extension for http message signatures. An issue was discovered in `httpsig-hyper` prior to version 0.0.23 where Digest header verification could incorrectly succeed due to misuse of Rust's `matches!` macro. Specifically, the comparison `if matches!(digest, _expected_digest)` treated `_expected_digest` as a pattern binding rather than a value comparison, resulting in unconditional success of the match expression. As a consequence, digest verification could incorrectly return success even when the computed digest did not match the expected value. Applications relying on Digest verification as part of HTTP message signature validation may therefore fail to detect message body modification. The severity depends on how the library is integrated and whether additional signature validation layers are enforced. This issue has been fixed in `httpsig-hyper` 0.0.23. The fix replaces the incorrect `matches!` usage with proper value comparison and additionally introduces constant-time comparison for digest verification as defense-in-depth. Regression tests have also been added to prevent reintroduction of this issue. Users are strongly advised to upgrade to the patched version. There is no reliable workaround without upgrading. Users who cannot immediately upgrade should avoid relying solely on Digest verification for message integrity and ensure that full HTTP message signature verification is enforced at the application layer.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/junkurihara/httpsig-rs/securit… | x_refsource_CONFIRM |
| https://github.com/junkurihara/httpsig-rs/pull/14 | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/pull/15 | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| junkurihara | httpsig-rs |
Affected:
< 0.0.23
|
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CVE-2025-59058 (GCVE-0-2025-59058)
Vulnerability from nvd – Published: 2025-09-12 13:10 – Updated: 2025-09-12 13:45
VLAI
Title
httpsig-rs's HMAC verification is vulnerable to timing attack
Summary
httpsig-rs is a Rust implementation of IETF RFC 9421 http message signatures. Prior to version 0.0.19, the HMAC signature comparison is not timing-safe. This makes anyone who uses HS256 signature verification vulnerable to a timing attack that allows the attacker to forge a signature. Version 0.0.19 fixes the issue.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/junkurihara/httpsig-rs/securit… | x_refsource_CONFIRM |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| junkurihara | httpsig-rs |
Affected:
< 0.0.19
|
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CVE-2026-26275 (GCVE-0-2026-26275)
Vulnerability from cvelistv5 – Published: 2026-02-19 21:25 – Updated: 2026-02-20 15:42
VLAI
Title
httpsig-hyper has Improper Digest Verification that May Allow Message Integrity Bypass
Summary
httpsig-hyper is a hyper extension for http message signatures. An issue was discovered in `httpsig-hyper` prior to version 0.0.23 where Digest header verification could incorrectly succeed due to misuse of Rust's `matches!` macro. Specifically, the comparison `if matches!(digest, _expected_digest)` treated `_expected_digest` as a pattern binding rather than a value comparison, resulting in unconditional success of the match expression. As a consequence, digest verification could incorrectly return success even when the computed digest did not match the expected value. Applications relying on Digest verification as part of HTTP message signature validation may therefore fail to detect message body modification. The severity depends on how the library is integrated and whether additional signature validation layers are enforced. This issue has been fixed in `httpsig-hyper` 0.0.23. The fix replaces the incorrect `matches!` usage with proper value comparison and additionally introduces constant-time comparison for digest verification as defense-in-depth. Regression tests have also been added to prevent reintroduction of this issue. Users are strongly advised to upgrade to the patched version. There is no reliable workaround without upgrading. Users who cannot immediately upgrade should avoid relying solely on Digest verification for message integrity and ensure that full HTTP message signature verification is enforced at the application layer.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/junkurihara/httpsig-rs/securit… | x_refsource_CONFIRM |
| https://github.com/junkurihara/httpsig-rs/pull/14 | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/pull/15 | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| junkurihara | httpsig-rs |
Affected:
< 0.0.23
|
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CVE-2025-59058 (GCVE-0-2025-59058)
Vulnerability from cvelistv5 – Published: 2025-09-12 13:10 – Updated: 2025-09-12 13:45
VLAI
Title
httpsig-rs's HMAC verification is vulnerable to timing attack
Summary
httpsig-rs is a Rust implementation of IETF RFC 9421 http message signatures. Prior to version 0.0.19, the HMAC signature comparison is not timing-safe. This makes anyone who uses HS256 signature verification vulnerable to a timing attack that allows the attacker to forge a signature. Version 0.0.19 fixes the issue.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/junkurihara/httpsig-rs/securit… | x_refsource_CONFIRM |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| junkurihara | httpsig-rs |
Affected:
< 0.0.19
|
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{
"name": "https://github.com/junkurihara/httpsig-rs/commit/fc095b6ce6043bb808f5d9c4379cf697899cb458",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/junkurihara/httpsig-rs/commit/fc095b6ce6043bb808f5d9c4379cf697899cb458"
}
],
"source": {
"advisory": "GHSA-q7pg-9pr4-mrp2",
"discovery": "UNKNOWN"
},
"title": "httpsig-rs\u0027s HMAC verification is vulnerable to timing attack"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-59058",
"datePublished": "2025-09-12T13:10:11.349Z",
"dateReserved": "2025-09-08T16:19:26.173Z",
"dateUpdated": "2025-09-12T13:45:48.203Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}