CVE catalog
CVE-2026-72815
go-chi chi versions >= 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first (leftmost) value of the X-Forwarded-For HTTP header. A remot
- Severity
- Medium · CVSS 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.50% · Oct 25, 2026
go-chi chi versions >= 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first (leftmost) value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log entries, by supplying a spoofed IP address in the X-Forwarded-For header. The issue is fixed in version 5.3.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-github-go-chi-chi | sid | 5.3.0-1 | fixed |
| Debian | golang-github-go-chi-chi | forky | 5.3.0-1 | fixed |
| Debian | golang-github-go-chi-chi | trixie | 5.2.0-1 | vulnerable |
| Debian | golang-github-go-chi-chi | bookworm | 5.0.7-1 | vulnerable |
| Opensuse | warewulf4 | tumbleweed | 4.7.1-1.1 | fixed |
| Opensuse | cloudflared | leap 16.0 | 2026.8.2-bp160.1.1 | fixed |
| Opensuse | trivy | leap 16.0 | 0.74.0-160000.1.1 | fixed |
| Opensuse | cloudflared | tumbleweed | 2026.8.2-1.1 | fixed |
| Ubuntu | golang-github-go-chi-chi | 22.04 | 1.5.1-2 | vulnerable |
| Ubuntu | golang-github-go-chi-chi | 22.04 | 5.0.7-1 | vulnerable |
| Ubuntu | golang-github-go-chi-chi | 24.04 | 5.0.7-1 | vulnerable |
| Ubuntu | golang-github-go-chi-chi | 26.04 | 5.2.0-1 | vulnerable |
| Ubuntu | golang-github-go-chi-chi | 26.04 | 5.2.3-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-github-go-chi-chi | source | sid | 5.3.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-chi-chi | source | forky | 5.3.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-chi-chi | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-chi-chi | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Opensuse | warewulf4 | rpm | tumbleweed | 4.7.1-1.1 | Not reported | OPENSUSE-SU-2026:11810-1 | Not reported |
| Opensuse | cloudflared | rpm | leap 16.0 | 2026.8.2-bp160.1.1 | Not reported | OPENSUSE-SU-2026:21670-1 | Not reported |
| Opensuse | trivy | rpm | leap 16.0 | 0.74.0-160000.1.1 | Not reported | OPENSUSE-SU-2026:21645-1 | Not reported |
| Opensuse | cloudflared | rpm | tumbleweed | 2026.8.2-1.1 | Not reported | OPENSUSE-SU-2026:11607-1 | Not reported |
Notes
[trixie] golang-github-go-chi-chi: Minor issue [bookworm] golang-github-go-chi-chi: Minor issue; out of LTS support
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-go-chi-chi-dev]Affected
Source package: [golang-github-go-chi-chi]
Details (2)
5.0.7-1· all · bookwormAffected
nvd · golang-github-go-chi-chi · debian · bookworm; nvd · golang-github-go-chi-chi · debian · 12
5.0.7-1· all · bookwormAffected
nvd · golang-github-go-chi-chi · debian · bookworm; nvd · golang-github-go-chi-chi · debian · 12
[Debian 13 (Trixie)]
- [golang-github-go-chi-chi-dev]Affected
Source package: [golang-github-go-chi-chi]
Details (2)
5.2.0-1· all · trixieAffected
nvd · golang-github-go-chi-chi · debian · 13
5.2.0-1· all · trixieAffected
nvd · golang-github-go-chi-chi · debian · 13
[openSUSE Tumbleweed]
- [warewulf4]Affected
Source package: [warewulf4]
Details (1)
4.7.0-4.1· x86_64 · tumbleweedAffected · Fixed:
4.7.1-1.1nvd · warewulf4 · opensuse · tumbleweed
- [warewulf4-dracut]Unknown
Source package: [warewulf4]
Details (1)
4.7.0-4.1· noarch · tumbleweedUnknown · Fixed:
4.7.1-1.1Version impact unknown
nvd · warewulf4 · opensuse · tumbleweed
- [warewulf4-man]Unknown
Source package: [warewulf4]
Details (1)
4.7.0-4.1· noarch · tumbleweedUnknown · Fixed:
4.7.1-1.1Version impact unknown
nvd · warewulf4 · opensuse · tumbleweed
- [warewulf4-overlay]Unknown
Source package: [warewulf4]
Details (1)
4.7.0-4.1· x86_64 · tumbleweedUnknown · Fixed:
4.7.1-1.1Version impact unknown
nvd · warewulf4 · opensuse · tumbleweed
- [warewulf4-overlay-rke2]Unknown
Source package: [warewulf4]
Details (1)
4.7.0-4.1· noarch · tumbleweedUnknown · Fixed:
4.7.1-1.1Version impact unknown
nvd · warewulf4 · opensuse · tumbleweed
- [warewulf4-reference-doc]Unknown
Source package: [warewulf4]
Details (1)
4.7.0-4.1· noarch · tumbleweedUnknown · Fixed:
4.7.1-1.1Version impact unknown
nvd · warewulf4 · opensuse · tumbleweed
- [cloudflared]Fixed
Source package: [cloudflared]
Details (1)
2026.8.2-1.1· x86_64 · tumbleweedFixed · Fixed:
2026.8.2-1.1nvd · cloudflared · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21645-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-72815]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-72815]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-72815]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11607-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11810-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21645-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21670-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-72815]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72815.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]