Owner

ProtonMail

6 indexed repositories · View on GitHub

WebClients
Monorepo hosting the proton web clients

TypeScript · 5595 stars
gluon
An IMAP server library written in Go

Go · 553 stars
go-crypto
Fork of go/x/crypto, providing an up-to-date OpenPGP implementation

Go · 418 stars
go-proton-api
Proton API library used by Go-based clients and tools

Go · 274 stars
protoncore_ios

Swift · 29 stars
libsieve-php
libsieve-php is a library to manage and modify sieve (RFC5228) scripts. It contains a parser for the sieve language (including extensions...

PHP · 25 stars

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[Vulnerability] Daily Quota Bypass via Session Cookie Reset in Lumo AI Guest Mode Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ProtonMail/WebClients#541 · 1 reaction · Opened Sep 11, 2026
openpgp: ReadKeyRing panics with index out of range on a malformed exportable-certification subpacket Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

ProtonMail/go-crypto#327 · Opened Sep 8, 2026
Ignore IME keydown events in the Rooster iframe bridge Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

ProtonMail/WebClients#539 · Opened Sep 7, 2026
Avoid refocusing an already-focused Rooster editor on click Open

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

ProtonMail/WebClients#537 · Opened Sep 7, 2026
Dispose Rooster editor initialized after unmount Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ProtonMail/WebClients#535 · Opened Sep 7, 2026
Proton serves Official App-specific Edition to Third Party Apps Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ProtonMail/WebClients#532 · 1 comment · Opened Sep 2, 2026
Nil pointer deref in ReadMessage Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ProtonMail/go-crypto#326 · Opened Aug 31, 2026
Pin release workflow actions to immutable commit SHAs Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

ProtonMail/gluon#493 · Opened Aug 24, 2026
Cannot parse a message sent to undisclosed recipients Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ProtonMail/gluon#482 · 1 comment · Opened Aug 10, 2026
Proton Mail desktop crashes at startup: EXCEPTION_ACCESS_VIOLATION at Proton Mail.exe+0x2c730ca on Windows 11 24H2 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ProtonMail/WebClients#528 · 4 comments · Opened Aug 7, 2026
Dark theme: what should the message container do when the email itself has a dark background? Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

ProtonMail/WebClients#526 · Opened Aug 4, 2026
[Security] Lumo HtmlPreviewPanel message listener missing origin/source check - UI spoofing Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

ProtonMail/WebClients#524 · Opened Aug 1, 2026
[Security] SSO token + UID posted to window.opener without targetOrigin (session takeover) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ProtonMail/WebClients#522 · Opened Aug 1, 2026
[Security] CSS url() in <style> tags survives email sanitization - open tracking + IP leak bypassing image proxy Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ProtonMail/WebClients#523 · Opened Aug 1, 2026
Panic: nil *resty.Response dereference in (*Client).authRefresh on a canceled context crashes the whole process Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

ProtonMail/go-proton-api#236 · Opened Jul 25, 2026
Rendering and Layout Issues with Forwarded Emails (e.g., from GMX), Am I the only one? Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ProtonMail/WebClients#521 · Opened Jul 19, 2026
Question about Spanish localization (es-ES vs es-419) Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

ProtonMail/WebClients#519 · Opened Jul 19, 2026
Autofill does not detect Authentik login fields (inputs inside shadow DOM) Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ProtonMail/WebClients#516 · Opened Jun 22, 2026
[Linux] GPU process crashes on startup (exit_code=11) with AMD + Mesa on Debian 12 — window never shown, --disable-gpu as workaround Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ProtonMail/WebClients#514 · Opened Jun 13, 2026
Shared calendar ICS export: line folding sometimes consumes a content space (RFC 5545), varying between requests Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ProtonMail/WebClients#513 · Opened Jun 12, 2026
Third-party client identity: can external apps get a named client string beyond "Other"? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ProtonMail/go-proton-api#227 · 1 comment · 1 reaction · Opened Jun 5, 2026
Feature request: session-fork support (auth/v4/sessions/forks) for cross-device / QR-login bootstrap Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

ProtonMail/go-proton-api#226 · 1 comment · 1 reaction · Opened Jun 5, 2026
Is local installation supported for external contributors? Open

Difficulty 2/5 Half a day Newbie friendliness 35/100

ProtonMail/WebClients#510 · 4 comments · Opened Jun 2, 2026
*Signature.Version is used before it is set Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ProtonMail/go-crypto#312 · Opened May 29, 2026
Extensibility of the docs-editor collaboration layer for non-linear document models Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ProtonMail/WebClients#508 · Opened May 29, 2026
Feature - display more labels on emails (Improperly closed issues.) Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

ProtonMail/WebClients#507 · 2 comments · Opened May 27, 2026
[Enhancement] Offer IMAP, without Bridge. Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ProtonMail/WebClients#506 · 1 reaction · Opened May 24, 2026
CREATE rejected with "invalid mailbox name" for hierarchy starting with "Mailspring" (breaks Mailspring email client through Proton Bridge) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ProtonMail/gluon#471 · Opened May 21, 2026
Responsive for linux apps (to make them usable on Linux Mobile OS) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ProtonMail/WebClients#505 · 2 comments · Opened May 17, 2026
Dissynchronicity About F-droid Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

ProtonMail/WebClients#504 · 2 reactions · Opened May 9, 2026
[Bug] `5.0.113.4 β` utilises dynamic hotlinking for `img`s which do not support it, thereby rendering them 404. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ProtonMail/WebClients#502 · Opened May 7, 2026
Check that v6 signatures are made by v6 keys Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ProtonMail/go-crypto#309 · Opened May 5, 2026
Lower paywall for local inference Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ProtonMail/WebClients#499 · 1 reaction · Opened Apr 30, 2026
version.json Stable vs EarlyAccess Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ProtonMail/WebClients#494 · Opened Apr 26, 2026
bug: "invalid data: first packet was not a public/private key" for unknown reason Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ProtonMail/go-crypto#308 · 3 comments · 2 reactions · Opened Apr 20, 2026
odf-kit — JavaScript/TypeScript library for ODT export from Lexical editor state Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ProtonMail/WebClients#488 · 1 reaction · Opened Apr 17, 2026
Authenticator upstream release of the frontend dist tarball Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

ProtonMail/WebClients#486 · 1 reaction · Opened Apr 12, 2026
Proton Mail - dark mode UI bug fix Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

ProtonMail/WebClients#484 · 1 reaction · Opened Apr 12, 2026
Proton Authenticator submitted to Flathub Open

Difficulty 1/5 Under an hour Newbie friendliness 20/100

ProtonMail/WebClients#482 · 1 comment · 4 reactions · Opened Apr 11, 2026
fix: UserFlags decoding fails when API returns integers instead of booleans — breaks login on Proton Drive macOS Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

ProtonMail/protoncore_ios#12 · Opened Apr 1, 2026
uservoice.com doesn't work on Firefox on Linux Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ProtonMail/WebClients#480 · Opened Mar 27, 2026
Vulnerability in WebClients project Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

ProtonMail/WebClients#479 · 2 reactions · Opened Mar 26, 2026
Vulnerability in Webclient Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ProtonMail/WebClients#478 · 1 reaction · Opened Mar 3, 2026
Vulnerability in WebClients project Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ProtonMail/WebClients#477 · 1 reaction · Opened Mar 3, 2026
Per-message flat-directory file storage does not scale (65K+ files) Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ProtonMail/gluon#454 · Opened Feb 25, 2026
SQLite performance PRAGMAs not configured (auto_vacuum, cache_size) Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

ProtonMail/gluon#453 · Opened Feb 25, 2026
Orphaned databases and message stores not cleaned up after re-sync Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ProtonMail/gluon#452 · Opened Feb 25, 2026
Feature Request: Allow custom icon images for Proton Pass items Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ProtonMail/WebClients#475 · 12 reactions · Opened Feb 21, 2026
[iOS] Adding a passkey to an existing entry fills the username field (if empty) with the WebAuthn user.name Open

Difficulty 1/5 Under an hour Newbie friendliness 58/100

ProtonMail/WebClients#474 · Opened Feb 19, 2026
Feature request: CLI-compatible CAPTCHA verification flow (redirect or polling) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ProtonMail/WebClients#473 · 1 reaction · Opened Feb 12, 2026

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