fix(deps): update module github.com/sigstore/rekor to v1.5.0 [security]#888
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This PR contains the following updates:
v1.3.8→v1.5.0Rekor affected by Server-Side Request Forgery (SSRF) via provided public key URL
CVE-2026-24117 / GHSA-4c4x-jm2x-pf9j
More information
Details
Summary
/api/v1/index/retrievesupports retrieving a public key via a user-provided URL, allowing attackers to trigger SSRF to arbitrary internal services.Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF.
Impact
Patches
Upgrade to v1.5.0. Note that this is a breaking change to the search API and fully disables lookups by URL. If you require this feature, please reach out and we can discuss alternatives.
Workarounds
Disable the search endpoint with
--enable_retrieve_api=false.Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Rekor's COSE v0.0.1 entry type nil pointer dereference in Canonicalize via empty Message
CVE-2026-23831 / GHSA-273p-m2cw-6833
More information
Details
Summary
Rekor’s cose v0.0.1 entry implementation can panic on attacker-controlled input when canonicalizing a proposed entry with an empty
spec.message.validate()returns nil (success) whenmessageis empty, leavingsign1Msguninitialized, andCanonicalize()later dereferencesv.sign1Msg.Payload.Impact
A malformed proposed entry of the
cose/v0.0.1type can cause a panic on a thread within the Rekor process. The thread is recovered so the client receives a 500 error message and service still continues, so the availability impact of this is minimal.Patches
Upgrade to v1.5.0
Workarounds
None
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Release Notes
sigstore/rekor (github.com/sigstore/rekor)
v1.5.0Compare Source
This release fixes GHSA-273p-m2cw-6833 and GHSA-4c4x-jm2x-pf9j. Note that this
drops support for fetching public keys via URL when querying the search API.
Vulnerability Fixes
Features
v1.4.3Compare Source
This release reduces dependencies for a number of exported packages.
This release also changes the format of the binary and container signature, which is now a
Sigstore bundle. To verify a release, use the
latest Cosign 3.x, verifying with
cosign verify-blob --bundle <artifact>-keyless.sigstore.json <artifact>.Improvements
Documentation
Contributors
v1.4.2Compare Source
This release includes some performance optimizations and a bug fix for publishing events to a pub/sub topic.
Fixes
Contributors
v1.4.1Compare Source
This release includes updated dependencies for known CVEs, as well as some optimizations to minimize gRPC traffic between Rekor and Trillian.
Fixes
Contributors
v1.4.0Compare Source
This is a minor version release given the removal of the stable checkpoint feature. To our knowledge, this was not
used effectively anywhere and therefore was removed from Rekor v1. Witnessing will be added as part of the upcoming
Rekor v2 release.
Features
Fixes
Removed
Contributors
v1.3.10Compare Source
Note that Rekor v1 is in maintenance mode as we are actively developing
its successor, Rekor v2, designed to be easy to maintain and cheaper to operate.. See the
README
for more information.
Features
Fixes / Misc
Contributors
v1.3.9Compare Source
Features
Contributors
Configuration
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