The vulnerability of the `extractTarDirectory` and `ensureLinkPath` functions in the `content/file.Store` component of the oras-go programming language library allows a malicious actor to gain unauthorized access to create and re-write files.

The vulnerability of the extractTarDirectory and ensureLinkPath functions in the content/file.Store component of the oras-go library is related to an incorrect restriction on the path to the directory. Exploiting this vulnerability could allow an attacker to gain unauthorized access to create and...

CVE-2026-85731

creationtimestamp| type| source ---|---|--- 2026-09-17 18:35:18+00:00| published-proof-of-concept| https://github.com/oras-project/oras-go/security/advisories/GHSA-m37j-52j7-pjw7...

CVE-2026-85732

creationtimestamp| type| source ---|---|--- 2026-09-17 18:35:16+00:00| published-proof-of-concept| https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v...

GHSA-H7VF-4X9W-H99V oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

Summary oras-go's pagination helper parseLink in registry/remote/utils.go follows the Link response header from a registry without validating the URL's host or scheme. When a malicious registry returns a Link header containing an absolute URL pointing to an arbitrary host e.g., a cloud metadata...

EUVD-2026-80871

oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing...

oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

Summary oras-go's pagination helper parseLink in registry/remote/utils.go follows the Link response header from a registry without validating the URL's host or scheme. When a malicious registry returns a Link header containing an absolute URL pointing to an arbitrary host e.g., a cloud metadata...

GHSA-M37J-52J7-PJW7 oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

Summary The content/file.Store in oras-go v2 unpacks OCI layer tarballs when a descriptor carries io.deis.oras.content.unpack=true. The extraction routine validates symlink targets purely lexically filepath.Join and, for regular files placed directly at the extraction root, skips the parent-symli...

EUVD-2026-80873

oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction pushDir...

oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

Summary The content/file.Store in oras-go v2 unpacks OCI layer tarballs when a descriptor carries io.deis.oras.content.unpack=true. The extraction routine validates symlink targets purely lexically filepath.Join and, for regular files placed directly at the extraction root, skips the parent-symli...

CVE-2026-85732

A flaw was found in oras-go, a Go library for managing OCI artifacts. This vulnerability allows a remote attacker to perform blind Server-Side Request Forgery SSRF against internal services by providing a specially crafted Link header URL during pagination operations. Although the response body i...

CVE-2026-85731

A flaw was found in oras-go, a Go library for managing OCI Open Container Initiative artifacts. A remote attacker can exploit a symlink-chain bypass vulnerability during tar extraction of OCI layers. This allows a malicious archive to create or overwrite any file writable by the process outside t...

CVE-2026-85732

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then...

CVE-2026-85731

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets...

CVE-2026-85731 oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets...

CVE-2026-85731

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2 , the content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true is vulnerable to an arbitrary file-write outside the store's working directory. The root cause lies in the pushDir path: extractTarDire...

CVE-2026-85731 oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets...

CVE-2026-85731 oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets...

CVE-2026-85732 oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then...

CVE-2026-85732

oras-go (a Go library for managing OCI artifacts) prior to 2.6.2 contains a blind SSRF vulnerability in the parseLink function within registry/remote/utils.go. The function accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port, causin...

CVE-2026-85732 oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then...