# What is CVE-2024-8883? > CVE-2024-8883 is a medium-severity flaw (CVSS 6.1) in Build of Keycloak from Red Hat, published on 19 September 2024. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 2.1%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2024-8883 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 46 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 6.1 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 2.1% (latest exploit-likelihood forecast) - **Published:** 19 September 2024 - **Record last updated:** 4 August 2026 - **Main product:** Build of Keycloak from Red Hat - **Affected products:** 6 ## What is CVE-2024-8883? In plain terms It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read some data and change some data. ### The official description A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking. ### What kind of flaw is it? - CWE-601: URL Redirection to Untrusted Site ('Open Redirect') ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: No login needed - Does someone have to click: Yes, a person has to take an action - What an attacker gets: Can read some data and change some data Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N` ## Is CVE-2024-8883 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 2.1%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 2.1%, 2.1%, 2.1%, 2.1%, 2.1%, 2.1%, 2.1%. ### Timeline - 19 September 2024: Published - 4 August 2026: Record last updated ### How Precursor Intelligence ranks it CVE-2024-8883 scores **46 out of 100 (Medium)**, with the action "Plan remediation". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: smaller factor - Threat activity around it: smaller factor 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2024-8883? The published record lists 6 products. - [Build of Keycloak](https://www.precursorintelligence.com/product/redhat/build_of_keycloak) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): version not specified - [Openshift Container Platform](https://www.precursorintelligence.com/product/redhat/openshift_container_platform) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): 4.11, 4.12 - [Openshift Container Platform for Ibm Z](https://www.precursorintelligence.com/product/redhat/openshift_container_platform_for_ibm_z) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): 4.9, 4.10 - [Openshift Container Platform for Linuxone](https://www.precursorintelligence.com/product/redhat/openshift_container_platform_for_linuxone) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): 4.9, 4.10 - [Openshift Container Platform for Power](https://www.precursorintelligence.com/product/redhat/openshift_container_platform_for_power) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): 4.9, 4.10 - [Single Sign-on](https://www.precursorintelligence.com/product/redhat/single_sign-on) by [Red Hat](https://www.precursorintelligence.com/vendors/redhat) (Application): 7.6 ## How do I fix CVE-2024-8883? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6878) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6879) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6880) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6882) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6886) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6887) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6888) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6889) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:6890) (Vendor advisory) - [access.redhat.com](https://access.redhat.com/security/cve/CVE-2024-8883) (Vendor advisory) - [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi?id=2312511) (Issue tracking, Vendor advisory) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:10385) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:10386) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:8823) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:8824) - [access.redhat.com](https://access.redhat.com/errata/RHSA-2024:8826) - [github.com](https://github.com/keycloak/keycloak/blob/main/services/src/main/java/org/keycloak/protocol/oidc/utils/RedirectUtils.java) (Product) ## Questions ### What is CVE-2024-8883? CVE-2024-8883 is a medium-severity flaw in Build of Keycloak from Red Hat, published on 19 September 2024. It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read some data and change some data. ### How serious is CVE-2024-8883? It scores 6.1 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2024-8883 is 46 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2024-8883 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 2.1%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2024-8883 affect? For Build of Keycloak from Red Hat: version not specified. The record lists 6 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2024-8883? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2024-8883 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact