CVE-2023-5044: kubernetes ingress-nginx Improper Input Validation
CVSS: 8.8v3.1HighModified
AliasesCGA-236h-gvr5-q9r6CGA-4r42-x5pc-mq2gCGA-6jc6-jx6x-852pCGA-c55x-p573-7j94CGA-f2jg-r3x9-f2qrCGA-fcg3-2jgh-qhr2CGA-p328-g5g3-g5q7CGA-q74f-phxp-pr97CGA-qgw3-c62x-3f8qCGA-rq9h-rg57-h7j4CGA-vxpr-jm3w-f979CGA-wf58-h574-7gm9CGA-wrg5-3pg8-2qcjCGA-xgvf-6626-5p3xGHSA-fp9f-44c2-cw27GO-2024-2428CGA-42v8-7g2g-3frmCGA-4fvh-3gfh-fxwrCGA-5r28-364r-26wpCGA-69vp-3mfr-vj7wCGA-7jx2-wh37-p5wpCGA-8v3x-pqq4-94g4CGA-98j8-gp27-p8q6CGA-f345-4fx6-v7phCGA-f8q4-rppr-697fCGA-fjgj-gf3w-f62hCGA-gjjw-6hxf-787rCGA-h2xg-g833-gmpcCGA-h62v-w7gh-cpxqCGA-h6gh-c9mj-ff6xCGA-jvqg-9mg3-w32jCGA-mg93-m6rg-m5vcCGA-qqv5-pgm7-w37vCGA-r7vx-ggj7-jpcwCGA-rgv9-gvq5-436jCGA-v757-jvhc-89xjCGA-vw32-3wp4-4948CGA-wg72-563j-8f6mCGA-x5rx-3xv8-cfx8CGA-xx4f-2pjh-hf76
Published 25-10-2023Last modified 12-06-2025
Vulnerability summary
CVE-2023-5044 is a high (CVSS 8.8) Improper Input Validation vulnerability in kubernetes ingress-nginx. EPSS estimates a 56.61% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
56.61%
0%100%
Critical · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 5Timeline
- 25-10-2023PublishedVulnerability first disclosed.
- 12-06-2025Last modifiedVulnerability information updated.
Description
Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation.
CVSS metrics
6 scores · 5 sources · 2 versionsHigh 7.2Preferred score · OSV · Go (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:NSourcesSingle source
High 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources5 sources · 7.6–8.8
- CVE.orgCNA7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:LDiffers
- OSV · WolfiEcosystem advisory · calculated7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:LDiffers
- OSV · GoEcosystem advisory · calculated7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:LDiffers
- OSV · ChainguardEcosystem advisory · calculated7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:LDiffers
EPSS trend
Probability
56.61%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 56.61% on 22-09-2026
22-09-202622-10-2026
EPSS score56.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Affected systems
Chainguard8 products
- ingress-nginx-controller-1.13< 1.13.9-r14
- ingress-nginx-controller-1.14< 1.14.5-r16
- ingress-nginx-controller-1.15All versions (No fix recorded)
- ingress-nginx-controller-fips-1.13< 1.13.9-r12
- ingress-nginx-controller-fips-1.14< 1.14.5-r12
Wolfi4 products
- ingress-nginx-controller-1.14< 1.14.5-r16
- ingress-nginx-controller-1.15All versions (No fix recorded)
- ingress-nginx-custom-error-pages-1.14< 1.14.5-r27
- ingress-nginx-custom-error-pages-compat-1.14< 1.14.5-r27
K8s.io1 product
- ingress-nginx< 1.9.0 | All versions (No fix recorded)
Kubernetes1 product
- ingress-nginx< 1.9.0
4 vendors · 14 products
