CVE-2026-45646: Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny s

Q: How do I fix CVE-2026-45646?

asp.net core odata: upgrade to 9.5.0; odata web api: upgrade to 7.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-45646 being exploited?

CVE-2026-45646 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-45646 affect?

CVE-2026-45646 affects asp.net core odata, odata web api. Severity is high (CVSS 7.5). Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Q: How urgent is CVE-2026-45646?

Priority 53/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLISTUPGRADEUPGRADE

CVE-2026-45646 is a high-severity flaw (CVSS 7.5) affecting asp.net core odata, odata web api. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-07-14
Last modified	2026-07-16

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-07-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 17:16 UTCPublished CVE record published
2026-07-16 17:26 UTCUpdated Record last modified

microsoft asp.net core odata UPGRADE

Affected: < 9.5.0

Fixed in: 9.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy asp.net-core-odata || rpm -q asp.net-core-odata || asp.net-core-odata --version

2. UPGRADE to 9.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade asp.net-core-odata

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade asp.net-core-odata

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

microsoft odata web api UPGRADE

Affected: < 7.8.0

Fixed in: 7.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy odata-web-api || rpm -q odata-web-api || odata-web-api --version

2. UPGRADE to 7.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade odata-web-api

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade odata-web-api

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45646?

asp.net core odata: upgrade to 9.5.0; odata web api: upgrade to 7.8.0. Exact commands for each OS are on this page.

Is CVE-2026-45646 being exploited?

CVE-2026-45646 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45646 affect?

CVE-2026-45646 affects asp.net core odata, odata web api. Severity is high (CVSS 7.5). Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

How urgent is CVE-2026-45646?

Priority 53/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

.NET vulnerabilities

Related CVEs

CVE-2026-57099 HIGH 7.5 UPGRADE Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny s
CVE-2026-50506 HIGH 7.5 UPGRADE UPGRADE Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny s

References

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