Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning
angular · angular
8.8HighCVSS 4.0
Recommended action
Within 7 days
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
Distribution package intelligence
Ubuntu vendor package status
Canonical’s release and source-package findings are shown separately from local repository availability.
1 package state
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
Ubuntu release
Source package
Vendor state
Fixed version
Evidence
Ubuntu 24.04 LTSnoble · standard archive
angular.js
Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
1 current
CVE-2026-68945 · CSAF 2.0 · revision 3 · finalRed Hat Product Security@angular/common: Angular: Cross-Request Response Reuse and State Poisoning in HttpTransferCache
54 known affected
The vendor explicitly identifies these products as affected by this CVE.
ceph-base as a component of Red Hat Ceph Storage 4
ceph-common as a component of Red Hat Ceph Storage 4
ceph-fuse as a component of Red Hat Ceph Storage 4
ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4
ceph-mds as a component of Red Hat Ceph Storage 4
ceph-mgr as a component of Red Hat Ceph Storage 4
ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4
ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4
ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4
ceph-mgr-rook as a component of Red Hat Ceph Storage 4
ceph-mon as a component of Red Hat Ceph Storage 4
ceph-osd as a component of Red Hat Ceph Storage 4
Summary
A flaw was found in Angular's HttpTransferCache component. This component, used for caching HTTP requests during server-side rendering, incorrectly generates cache keys when repeated request parameters are present, causing semantically different requests to share the same cache key. This cache-key ambiguity can lead to cross-request response reuse and state poisoning, where a security-sensitive request might receive an incorrect or attacker-influenced cached response. This could result in an application displaying wrong information or operating with corrupted data, potentially leading to information disclosure.
Remediation
Affected
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.
Official European source
ENISA European Vulnerability Database
Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.
1 current
ENISA EUVD identifier
EUVD-2026-52343
No EUVD known-exploited evidence
ENISA has published the identifier mapping but no EUVD description has been stored yet.
EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
01
What, why and how
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same transfer-cache key and reuse a wrong backend response. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.2.
What
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same transfer-cache key and reuse a wrong backend response. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.2.
Why
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same transfer-cache key and reuse a wrong backend response. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.2.
Why
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No confirmed evidence
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.None recorded
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
Likely attack path
a network path → Insufficient Verification of Data Authenticity → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-345: Insufficient Verification of Data Authenticity. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VILowVulnerable-system integrity: A successful attack can cause a limited loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-345
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-52343Official EUVD mapping
0 linked advisory records.
Official EUVD recordBSI · German · WID-SEC-W-2026-2632Angular: Mehrere Schwachstellen
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Angular ausnutzen, um Dateien zu manipulieren und Cross-Site-Scripting-Angriffe durchzuführen.
Operational remediation based on structured source evidence.
Status ?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
ceph-base as a component of Red Hat Ceph Storage 4; ceph-common as a component of Red Hat Ceph Storage 4; ceph-fuse as a component of Red Hat Ceph Storage 4; ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4; ceph-mds as a component of Red Hat Ceph Storage 4; ceph-mgr as a component of Red Hat Ceph Storage 4; ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4; ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4; ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4; ceph-mgr-rook as a component of Red Hat Ceph Storage 4; ceph-mon as a component of Red Hat Ceph Storage 4; ceph-osd as a component of Red Hat Ceph Storage 4; ceph-radosgw as a component of Red Hat Ceph Storage 4; ceph-selinux as a component of Red Hat Ceph Storage 4; ceph-test as a component of Red Hat Ceph Storage 4; ceph.src as a component of Red Hat Ceph Storage 4; libcephfs-devel as a component of Red Hat Ceph Storage 4; libcephfs2 as a component of Red Hat Ceph Storage 4; librados-devel as a component of Red Hat Ceph Storage 4; librados2 as a component of Red Hat Ceph Storage 4; libradospp-devel as a component of Red Hat Ceph Storage 4; libradosstriper1 as a component of Red Hat Ceph Storage 4; librbd-devel as a component of Red Hat Ceph Storage 4; librbd1 as a component of Red Hat Ceph Storage 4; librgw-devel as a component of Red Hat Ceph Storage 4; librgw2 as a component of Red Hat Ceph Storage 4; python-ceph-argparse as a component of Red Hat Ceph Storage 4; python-cephfs as a component of Red Hat Ceph Storage 4; python-rados as a component of Red Hat Ceph Storage 4; python-rbd as a component of Red Hat Ceph Storage 4; and 24 more
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 3 Aug 2026 · Last source change 3 Aug 2026, 16:58 UTC · CWE-345 · Insufficient Verification of Data Authenticity
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source ?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-52343
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
rhacm2/volsync-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/volsync-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; ceph-base as a component of Red Hat Ceph Storage 4; ceph-common as a component of Red Hat Ceph Storage 4; ceph-fuse as a component of Red Hat Ceph Storage 4; ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4; ceph-mds as a component of Red Hat Ceph Storage 4; ceph-mgr as a component of Red Hat Ceph Storage 4; ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4; ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4; ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4; ceph-mgr-rook as a component of Red Hat Ceph Storage 4; ceph-mon as a component of Red Hat Ceph Storage 4; ceph-osd as a component of Red Hat Ceph Storage 4; ceph-radosgw as a component of Red Hat Ceph Storage 4; ceph-selinux as a component of Red Hat Ceph Storage 4; ceph-test as a component of Red Hat Ceph Storage 4; ceph.src as a component of Red Hat Ceph Storage 4; libcephfs-devel as a component of Red Hat Ceph Storage 4; libcephfs2 as a component of Red Hat Ceph Storage 4; librados-devel as a component of Red Hat Ceph Storage 4; librados2 as a component of Red Hat Ceph Storage 4; libradospp-devel as a component of Red Hat Ceph Storage 4; libradosstriper1 as a component of Red Hat Ceph Storage 4; librbd-devel as a component of Red Hat Ceph Storage 4; librbd1 as a component of Red Hat Ceph Storage 4; librgw-devel as a component of Red Hat Ceph Storage 4; librgw2 as a component of Red Hat Ceph Storage 4; python-ceph-argparse as a component of Red Hat Ceph Storage 4; python-cephfs as a component of Red Hat Ceph Storage 4; and 26 more
After
ceph-base as a component of Red Hat Ceph Storage 4; ceph-common as a component of Red Hat Ceph Storage 4; ceph-fuse as a component of Red Hat Ceph Storage 4; ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4; ceph-mds as a component of Red Hat Ceph Storage 4; ceph-mgr as a component of Red Hat Ceph Storage 4; ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4; ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4; ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4; ceph-mgr-rook as a component of Red Hat Ceph Storage 4; ceph-mon as a component of Red Hat Ceph Storage 4; ceph-osd as a component of Red Hat Ceph Storage 4; ceph-radosgw as a component of Red Hat Ceph Storage 4; ceph-selinux as a component of Red Hat Ceph Storage 4; ceph-test as a component of Red Hat Ceph Storage 4; ceph.src as a component of Red Hat Ceph Storage 4; libcephfs-devel as a component of Red Hat Ceph Storage 4; libcephfs2 as a component of Red Hat Ceph Storage 4; librados-devel as a component of Red Hat Ceph Storage 4; librados2 as a component of Red Hat Ceph Storage 4; libradospp-devel as a component of Red Hat Ceph Storage 4; libradosstriper1 as a component of Red Hat Ceph Storage 4; librbd-devel as a component of Red Hat Ceph Storage 4; librbd1 as a component of Red Hat Ceph Storage 4; librgw-devel as a component of Red Hat Ceph Storage 4; librgw2 as a component of Red Hat Ceph Storage 4; python-ceph-argparse as a component of Red Hat Ceph Storage 4; python-cephfs as a component of Red Hat Ceph Storage 4; python-rados as a component of Red Hat Ceph Storage 4; python-rbd as a component of Red Hat Ceph Storage 4; and 24 more
Affected versionsThe structured affected or fixed version information changed.
Before
rhacm2/volsync-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/volsync-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; ceph-base as a component of Red Hat Ceph Storage 4; ceph-common as a component of Red Hat Ceph Storage 4; ceph-fuse as a component of Red Hat Ceph Storage 4; ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4; ceph-mds as a component of Red Hat Ceph Storage 4; ceph-mgr as a component of Red Hat Ceph Storage 4; ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4; ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4; ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4; ceph-mgr-rook as a component of Red Hat Ceph Storage 4; ceph-mon as a component of Red Hat Ceph Storage 4; ceph-osd as a component of Red Hat Ceph Storage 4; ceph-radosgw as a component of Red Hat Ceph Storage 4; ceph-selinux as a component of Red Hat Ceph Storage 4; ceph-test as a component of Red Hat Ceph Storage 4; ceph.src as a component of Red Hat Ceph Storage 4; libcephfs-devel as a component of Red Hat Ceph Storage 4; libcephfs2 as a component of Red Hat Ceph Storage 4; librados-devel as a component of Red Hat Ceph Storage 4; librados2 as a component of Red Hat Ceph Storage 4; libradospp-devel as a component of Red Hat Ceph Storage 4; libradosstriper1 as a component of Red Hat Ceph Storage 4; librbd-devel as a component of Red Hat Ceph Storage 4; librbd1 as a component of Red Hat Ceph Storage 4; librgw-devel as a component of Red Hat Ceph Storage 4; librgw2 as a component of Red Hat Ceph Storage 4; python-ceph-argparse as a component of Red Hat Ceph Storage 4; python-cephfs as a component of Red Hat Ceph Storage 4; and 41 more
After
rhacm2/volsync-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/volsync-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; ceph-base as a component of Red Hat Ceph Storage 4; ceph-common as a component of Red Hat Ceph Storage 4; ceph-fuse as a component of Red Hat Ceph Storage 4; ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4; ceph-mds as a component of Red Hat Ceph Storage 4; ceph-mgr as a component of Red Hat Ceph Storage 4; ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4; ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4; ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4; ceph-mgr-rook as a component of Red Hat Ceph Storage 4; ceph-mon as a component of Red Hat Ceph Storage 4; ceph-osd as a component of Red Hat Ceph Storage 4; ceph-radosgw as a component of Red Hat Ceph Storage 4; ceph-selinux as a component of Red Hat Ceph Storage 4; ceph-test as a component of Red Hat Ceph Storage 4; ceph.src as a component of Red Hat Ceph Storage 4; libcephfs-devel as a component of Red Hat Ceph Storage 4; libcephfs2 as a component of Red Hat Ceph Storage 4; librados-devel as a component of Red Hat Ceph Storage 4; librados2 as a component of Red Hat Ceph Storage 4; libradospp-devel as a component of Red Hat Ceph Storage 4; libradosstriper1 as a component of Red Hat Ceph Storage 4; librbd-devel as a component of Red Hat Ceph Storage 4; librbd1 as a component of Red Hat Ceph Storage 4; librgw-devel as a component of Red Hat Ceph Storage 4; librgw2 as a component of Red Hat Ceph Storage 4; python-ceph-argparse as a component of Red Hat Ceph Storage 4; python-cephfs as a component of Red Hat Ceph Storage 4; and 26 more
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
CVE-2026-68945: Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning | BlackTree
