--- title: I Found a Bug That Exposed Private Instagram Posts to... description: A security researcher discovered a server-side authorization bypass in Instagram that allowed unauthenticated access to private posts via a simple HTTP GET... canonical: https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I Found a Bug That Exposed Private Instagram Posts to Anyone. | daily.dev og:description: A security researcher discovered a server-side authorization bypass in Instagram that allowed unauthenticated access to private posts via a simple HTTP GET... og:url: https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9 og:image: https://api.daily.dev/og/posts/O49mzQ4H9.png og:image:alt: I Found a Bug That Exposed Private Instagram Posts to Anyone. og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # I Found a Bug That Exposed Private Instagram Posts to Anyone. **[InfoSec Write-ups](https://daily.dev/sources/infosecwriteups)** · 6 min read · 0 upvotes · 0 comments ## Summary A security researcher discovered a server-side authorization bypass in Instagram that allowed unauthenticated access to private posts via a simple HTTP GET request with specific mobile headers. The vulnerability affected roughly 28% of tested private accounts. Meta silently patched it within 48 hours of receiving the report, then closed the case as 'Not Applicable' claiming the issue was unreproducible — despite having asked for and received vulnerable test accounts. After 102 days and multiple escalation attempts, the researcher is publicly disclosing the bug along with timestamped video evidence, a Python PoC script, and full Meta correspondence archived on GitHub. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The Instagram API Scraping Crisis: When ‘Public’ Data Becomes a 17.5 Million User Breach](https://daily.dev/posts/the-instagram-api-scraping-crisis-when-public-data-becomes-a-17-5-million-user-breach-xkphneuov) · Security Boulevard · 0 upvotes · 0 comments - [Meta admits to Instagram password reset mess, denies leaks](https://daily.dev/posts/meta-admits-to-instagram-password-reset-mess-denies-leaks-gskm0ords) · The Register · 2 upvotes · 0 comments - [Former Meta engineer probed over 30,000 private Facebook photos](https://daily.dev/posts/former-meta-engineer-probed-over-30-000-private-facebook-photos-iakdmkp1a) · The Next Web · 0 upvotes · 0 comments --- Tags: [#instagram](https://daily.dev/tags/instagram), [#authorization](https://daily.dev/tags/authorization) [View this post on daily.dev](https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"I Found a Bug That Exposed Private Instagram Posts to Anyone.","url":"https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9"},"datePublished":"2026-03-11T06:07:35.621Z","dateModified":"2026-03-11T06:08:03.904Z","description":"A security researcher discovered a server-side authorization bypass in Instagram that allowed unauthenticated access to private posts via a simple HTTP GET...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/60fc8d7ffff46e2e522bbc7671b723e3?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/60fc8d7ffff46e2e522bbc7671b723e3?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"InfoSec Write-ups","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"InfoSec Write-ups","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/f0dc21b5bbfd46fda36f7b4b53dd1705","url":"https://daily.dev/sources/infosecwriteups"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/i-found-a-bug-that-exposed-private-instagram-posts-to-anyone--o49mzq4h9","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"instagram,authorization","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"InfoSec Write-ups","item":"https://daily.dev/sources/infosecwriteups"},{"@type":"ListItem","position":3,"name":"I Found a Bug That Exposed Private Instagram Posts to Anyone."}]} ```