CVE-2026-48702: Rekor is a software supply chain transparency log

Q: How do I fix CVE-2026-48702?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Q: Is CVE-2026-48702 being exploited?

CVE-2026-48702 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-48702 affect?

CVE-2026-48702 affects affected software. Severity is high (CVSS 7.5). Rekor is a software supply chain transparency log. Starting in version 0.3.0 and prior to version 1.5.2, the `Package.Unmarshal()` function in `pkg/types/alpine/apk.go` decompresses the signature and control gzip members of an APK file into

Q: How urgent is CVE-2026-48702?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTE

CVE-2026-48702 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Rekor is a software supply chain transparency log. Starting in version 0.3.0 and prior to version 1.5.2, the `Package.Unmarshal()` function in `pkg/types/alpine/apk.go` decompresses the signature and control gzip members of an APK file into in-memory buffers without bounding the total decompressed size. The existing `max_apk_metadata_size` check (default 1MB) is only applied to individual tar entry header sizes after decompression completes, so i

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-08-13
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Timeline

2026-08-13 14:17 UTCPublished CVE record published
2026-10-23 18:10 UTCUpdated Record last modified

Exact fixes by distribution

Go · github.com/sigstore/rekor · FIXED · 1.5.2 · vulnerable: >= 0.3.0, < 1.5.2 · source

go get github.com/sigstore/rekor@v1.5.2 go list -m github.com/sigstore/rekor

Fedora 46 · kwin-zones · FIXED · 1.0.13-1.fc46 · FEDORA-2026-95888f332b · source

sudo dnf upgrade --advisory=FEDORA-2026-95888f332b

Fedora ELN · nginx-mod-brotli · FIXED · 1.0.0~rc-16.eln159 · FEDORA-2026-501a6a8273 · source

sudo dnf upgrade --advisory=FEDORA-2026-501a6a8273

Debian 13 · rekor · NO FIX YET

RHEL 10 · buildah · NOT AFFECTED

RHEL 10 · podman · NOT AFFECTED

RHEL 10 · rhel10-eus/rhel-10.0-bootc · NOT AFFECTED

RHEL 10 · skopeo · NOT AFFECTED

RHEL 9 · rhel9-eus/rhel-9.6-bootc · NOT AFFECTED

Amazon Linux 2023 · see advisory · FIXED · ALAS2023-2026-2023 · source

sudo dnf update --advisory=ALAS2023-2026-2023

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-48702?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-48702 being exploited?

CVE-2026-48702 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-48702 affect?

CVE-2026-48702 affects affected software. Severity is high (CVSS 7.5). Rekor is a software supply chain transparency log. Starting in version 0.3.0 and prior to version 1.5.2, the `Package.Unmarshal()` function in `pkg/types/alpine/apk.go` decompresses the signature and control gzip members of an APK file into

How urgent is CVE-2026-48702?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

References

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