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

> An attacker can force the library to make requests to internal services via a malicious registry, enabling network probing and potential credential leakage.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 16 Sep 2026
- **Updated:** 16 Sep 2026
- **Also known as:** CLEANSTART-2026-FH01204, CLEANSTART-2026-RO55124, CLEANSTART-2026-VP35771, DEBIAN-CVE-2026-85732, ECHO-907e-3d79-47e5, GHSA-h7vf-4x9w-h99v, GO-2026-6497, MINI-22cx-84wf-5j4x, MINI-232r-xv4p-gf5x, MINI-23jr-v89m-h6c3, MINI-24fx-pv76-3h7v, MINI-24v8-hgcg-2xpj, MINI-2633-7hcm-j2wv, MINI-285q-8f96-g56x, MINI-28ff-3qg9-q7w2, MINI-29q5-6hc2-j49m, MINI-2g35-g3c3-f7x8, MINI-2hp2-8q83-33qp, MINI-2p6v-xwcq-4wgq, MINI-2p7w-xrc9-xm99, MINI-2wj8-x5gj-26c3, MINI-34pr-j3wj-4869, MINI-352c-9vq6-pphm, MINI-37g9-cgjw-hh8h, MINI-3qg9-w3m2-pmmr, MINI-3vqv-565v-r8c7, MINI-428v-v2cm-6mgj, MINI-4cfw-59w9-24h3, MINI-4h9x-rphw-hh8h, MINI-4hfw-6j84-vjjm, MINI-4vj2-r793-72fr, MINI-4xvr-xq2v-cccx, MINI-5243-rvvj-7mq3, MINI-538p-hc47-3rj6, MINI-54q7-6892-43rq, MINI-574f-x5mv-3rgr, MINI-598g-4p32-c677, MINI-59cg-gp53-cp2x, MINI-5c43-w2fr-pj2p, MINI-5gfv-ww35-c9pq, MINI-5rgf-qgpf-v5v7, MINI-5vhh-56w2-2g49, MINI-64r5-m5qr-3m65, MINI-684j-7r8r-cf26, MINI-6cmr-2822-78jg, MINI-6crr-crvr-m3g3, MINI-6m8q-ff3q-47hv, MINI-6p2p-q949-ghq3, MINI-6p45-8xg7-x9p8, MINI-6pgp-xp8h-5g44, MINI-6q5q-r68v-hx6p, MINI-6w24-pj4f-933r, MINI-6wfx-mh66-fh88, MINI-6xxx-r23q-p349, MINI-72w3-g7px-vg9q, MINI-73vc-4358-mjcq, MINI-7653-r33q-6gf8, MINI-79wj-xmjw-jxch, MINI-7h8p-m5pg-gvm5, MINI-7mvv-6cqg-jw8h, MINI-7p6g-p7fc-r52p, MINI-7p95-c33c-2pp6, MINI-7p9m-pxpq-g866, MINI-7q4p-mj8q-93m8, MINI-7xh5-wfjw-3cwv, MINI-8254-fw5c-h24p, MINI-8452-j4xm-8jmw, MINI-86qw-mfqj-m745, MINI-8cmv-p93g-qj93, MINI-8j78-74jp-v5j4, MINI-8mhx-6f2j-9cf7, MINI-8qgq-5pr9-368j, MINI-8qmf-9qfw-7hq7, MINI-8v34-v529-rc7m, MINI-8v4p-wfmj-pvpx, MINI-8v65-cj28-mgjq, MINI-92gr-gwqw-qjxc, MINI-92vf-hmgc-fw9j, MINI-9c2g-7w9p-5273, MINI-9gjv-x2m9-8h52, MINI-9rjq-qgr4-fjhg, MINI-9vvp-q8cr-g42q, MINI-9x45-gq3v-3mm9, MINI-c374-m9xp-76qr, MINI-c4fc-xcmv-5r4g, MINI-c4q2-8qpv-mf5m, MINI-c5qm-f99f-qprh, MINI-ccg4-jm5w-v999, MINI-ch7w-q463-4825, MINI-ch8r-jm37-ghhr, MINI-cmpq-8r85-vr36, MINI-cp37-g6cj-7rcq, MINI-cv69-55pj-pxhm, MINI-cvxv-7rph-4c76, MINI-cw73-v8jh-rqrp, MINI-f27m-599x-qqv5, MINI-f2q9-qj3j-356x, MINI-f4w4-7frh-7hrj, MINI-f785-pc72-j256, MINI-f8wp-vpfp-6q7p, MINI-fc9p-xmxg-3qfw, MINI-fjm2-p4j3-cjv7, MINI-fq7v-8pxg-873f, MINI-fvhj-49cg-966f, MINI-fvq4-rxf9-67r5, MINI-g2c9-2ph6-472h, MINI-g2gf-hrpq-mrp9, MINI-g2mc-v222-j52m, MINI-g9r3-89p9-hxm5, MINI-gc6m-9qpp-h66q, MINI-ggrp-9hhj-vf73, MINI-gh3f-4m7r-gjq4, MINI-ghcf-h88x-85g8, MINI-gqvj-47cp-8vrq, MINI-grvp-7q9g-3752, MINI-gx7v-853r-pg9w, MINI-h2pc-pj6c-r9pf, MINI-h73g-c3hx-3wrx, MINI-h74v-vv5q-4ww4, MINI-h88p-j73w-x4rc, MINI-h8q2-rc4m-xf77, MINI-h8w3-xccj-24pr, MINI-hc2r-2rm6-5r9v, MINI-hgp3-j95f-pmj2, MINI-hr59-4phr-7326, MINI-j2ch-259f-7c86, MINI-j3jc-gq9x-787h, MINI-j4g3-568h-7724, MINI-j6mq-g587-4wrr, MINI-j9jg-g3vw-4489, MINI-jc6q-jw62-6xgj, MINI-jc88-fc4p-f6mf, MINI-jfj2-qm7g-3ww9, MINI-jfqm-75hm-r3wj, MINI-jm59-cm72-gmg7, MINI-jmjv-7mhh-5cf2, MINI-jqf2-34rh-2fff, MINI-jr2c-8rxc-hh36, MINI-jxj8-rcxw-jh98, MINI-m249-3hjj-9439, MINI-m539-69w3-75gw, MINI-m64c-vhjj-46p6, MINI-m65x-6hfw-q9hg, MINI-m98p-qww9-9f4v, MINI-mf96-c3f9-7f78, MINI-mj95-6vrc-6qrv, MINI-mjwf-768w-262r, MINI-mwqj-8399-94xh, MINI-mxg6-3jxq-mhf2, MINI-pc6x-fph8-xmc2, MINI-pm8h-6fwf-5hg9, MINI-ppmc-xm3w-jp98, MINI-ppvj-crfh-fvg3, MINI-q4f5-hfrv-vm9j, MINI-q95h-47fq-vwc9, MINI-qg2q-cg6f-j2mw, MINI-qp98-jpqj-p95j, MINI-qpc6-hgw7-8qjx, MINI-qwcp-99xr-w67p, MINI-qx46-qc53-phfx, MINI-r44r-6gmp-7xxv, MINI-r7pg-x7m7-98p8, MINI-rmfq-276v-8gpq, MINI-rmwq-j9hj-2mcr, MINI-rq2v-x3jm-cwg5, MINI-rvqv-mr7w-x85c, MINI-rwrc-h383-mm79, MINI-v455-w639-c49w, MINI-vmw6-mqpg-qqq3, MINI-vwf7-g5wm-j522, MINI-vwgq-9943-6pwv, MINI-vxg3-8w7x-8j82, MINI-w253-gwpv-3wjj, MINI-w2gq-frqv-8973, MINI-w2jj-9cvf-j82m, MINI-w2v6-7v69-w854, MINI-w648-mv37-h96f, MINI-w872-xgv5-3p8h, MINI-wpr8-mj2w-w942, MINI-wqw3-2hpv-c4h3, MINI-wv6c-mxm5-9gvf, MINI-ww3c-cm5r-v326, MINI-wwxw-j698-3gx7, MINI-x2p2-fmv5-2p6f, MINI-x52m-76cm-68xg, MINI-x8jj-whcv-wg8m, MINI-x9xr-gg7p-5pcq, MINI-xwxx-xpvh-w9h4, UBUNTU-CVE-2026-85732, openSUSE-SU-2026:11848-1

## What is CVE-2026-85732?

CVE-2026-85732 is a medium-severity server-side request forgery vulnerability in oras-project oras-go, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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 issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-85732?

3 open source packages ship an affected version, including oras.land/oras-go/v2.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `oras.land/oras-go/v2` | Go | All versions | 2.6.2 |
| `oras.land/oras-go/v2` | Go | All versions | 2.6.2 |
| `oras.land/oras-go/v2` | Go | All versions | 2.6.2 |
| `helm` | openSUSE:Tumbleweed | All versions | 4.3.0-2.1 |

## How do I fix CVE-2026-85732?

Upgrade oras.land/oras-go/v2 to 2.6.2 or later.

## Is CVE-2026-85732 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85732 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-85732 and fix it if it is affected.

What it is: CVE-2026-85732 is a medium-severity server-side request forgery vulnerability in oras-project oras-go, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85732 exists.

Affected packages and fixed versions:
- oras.land/oras-go/v2 (Go): affected all versions; fixed in 2.6.2
- oras.land/oras-go/v2 (Go): affected all versions; fixed in 2.6.2
- oras.land/oras-go/v2 (Go): affected all versions; fixed in 2.6.2

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-85732/ (Markdown: https://insights.sbomify.com/CVE-2026-85732/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-85732
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-85732
- OSV: https://osv.dev/vulnerability/CVE-2026-85732

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-85732/
Summaries are generated and may contain mistakes; the official description above is the record.
