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Improve User Agent processing#3811

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cpp11nullptr merged 3 commits into
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iepoly/improve-user-agent-processing
May 19, 2026
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Improve User Agent processing#3811
cpp11nullptr merged 3 commits into
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iepoly/improve-user-agent-processing

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@cpp11nullptr cpp11nullptr requested a review from a team as a code owner May 11, 2026 09:10
@cpp11nullptr cpp11nullptr merged commit ee9c092 into master May 19, 2026
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@cpp11nullptr cpp11nullptr deleted the iepoly/improve-user-agent-processing branch May 19, 2026 09:15
This was referenced May 25, 2026
github-actions Bot pushed a commit to EelcoLos/nx-tinkering that referenced this pull request May 26, 2026
Updated
[Microsoft.Identity.Web](https://github.com/AzureAD/microsoft-identity-web)
from 4.9.0 to 4.10.0.

<details>
<summary>Release notes</summary>

_Sourced from [Microsoft.Identity.Web's
releases](https://github.com/AzureAD/microsoft-identity-web/releases)._

## 4.10.0

### New features
- Add `WithExtraBodyParameters` fluent API for attaching extra body
parameters to token acquisition requests. See
[#​3819](AzureAD/microsoft-identity-web#3819).
- Add `IConfidentialClientApplicationProvider` extensibility interface
and `CachePartitionKey` support for silent token acquisition. See
[#​3822](AzureAD/microsoft-identity-web#3822).

### Bug fixes
- Redirect URI sanitization in authorization scenarios; centralize
redirect URI validation in a shared helper. See
[#​3825](AzureAD/microsoft-identity-web#3825).
- Reject dSTS-shaped `Authority` values with a clearer exception,
steering users to use `Instance` + `TenantId` instead. See
[#​3805](AzureAD/microsoft-identity-web#3805).
- Improve regex handling and adding length/timeout safeguards for
SameSite User Agent. See
[#​3811](AzureAD/microsoft-identity-web#3811).

### Behavior changes
- **B2C OpenID Connect event handler: LRU cache for issuer address.**
Issuer address lookups in the B2C OIDC event handler are now cached with
an LRU cache, improving performance for repeated lookups. See
[#​3821](AzureAD/microsoft-identity-web#3821).

### Dependencies updates
- Update MSAL.NET to 4.84.1. See
[#​3822](AzureAD/microsoft-identity-web#3822).
- Pin `Microsoft.Kiota.Abstractions` to 1.22.0 for GraphServiceClient.
See
[#​3817](AzureAD/microsoft-identity-web#3817).
- Bump `uuid` and `@​azure/msal-node` in SidecarAdapter TypeScript test
app. See
[#​3826](AzureAD/microsoft-identity-web#3826).
- Bump `qs` in SidecarAdapter TypeScript test app. See
[#​3829](AzureAD/microsoft-identity-web#3829).

Commits viewable in [compare
view](AzureAD/microsoft-identity-web@4.9.0...4.10.0).
</details>

[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.Identity.Web&package-manager=nuget&previous-version=4.9.0&new-version=4.10.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
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You can trigger Dependabot actions by commenting on this PR:
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eelco Los <5102501+EelcoLos@users.noreply.github.com>
This was referenced May 30, 2026
gunndabad added a commit to DFE-Digital/teaching-record-system that referenced this pull request Jun 1, 2026
….0 (#3431)

Updated
[Microsoft.Identity.Web.GraphServiceClientBeta](https://github.com/AzureAD/microsoft-identity-web)
from 4.9.0 to 4.10.0.

<details>
<summary>Release notes</summary>

_Sourced from [Microsoft.Identity.Web.GraphServiceClientBeta's
releases](https://github.com/AzureAD/microsoft-identity-web/releases)._

## 4.10.0

### New features
- Add `WithExtraBodyParameters` fluent API for attaching extra body
parameters to token acquisition requests. See
[#​3819](AzureAD/microsoft-identity-web#3819).
- Add `IConfidentialClientApplicationProvider` extensibility interface
and `CachePartitionKey` support for silent token acquisition. See
[#​3822](AzureAD/microsoft-identity-web#3822).

### Bug fixes
- Redirect URI sanitization in authorization scenarios; centralize
redirect URI validation in a shared helper. See
[#​3825](AzureAD/microsoft-identity-web#3825).
- Reject dSTS-shaped `Authority` values with a clearer exception,
steering users to use `Instance` + `TenantId` instead. See
[#​3805](AzureAD/microsoft-identity-web#3805).
- Improve regex handling and adding length/timeout safeguards for
SameSite User Agent. See
[#​3811](AzureAD/microsoft-identity-web#3811).

### Behavior changes
- **B2C OpenID Connect event handler: LRU cache for issuer address.**
Issuer address lookups in the B2C OIDC event handler are now cached with
an LRU cache, improving performance for repeated lookups. See
[#​3821](AzureAD/microsoft-identity-web#3821).

### Dependencies updates
- Update MSAL.NET to 4.84.1. See
[#​3822](AzureAD/microsoft-identity-web#3822).
- Pin `Microsoft.Kiota.Abstractions` to 1.22.0 for GraphServiceClient.
See
[#​3817](AzureAD/microsoft-identity-web#3817).
- Bump `uuid` and `@​azure/msal-node` in SidecarAdapter TypeScript test
app. See
[#​3826](AzureAD/microsoft-identity-web#3826).
- Bump `qs` in SidecarAdapter TypeScript test app. See
[#​3829](AzureAD/microsoft-identity-web#3829).

Commits viewable in [compare
view](AzureAD/microsoft-identity-web@4.9.0...4.10.0).
</details>

[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.Identity.Web.GraphServiceClientBeta&package-manager=nuget&previous-version=4.9.0&new-version=4.10.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: James Gunn <james@gunn.io>
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