{"answers":{"affected":"3 open source packages ship an affected version, including github.com/axllent/mailpit. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48824 in the wild and no public exploit code.","fix":"Upgrade github.com/axllent/mailpit to 1.30.1 or later.","what":"CVE-2026-48824 is a medium-severity denial of service vulnerability in axllent mailpit, published on 20 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-48824 and fix it if it is affected.\n\nWhat it is: CVE-2026-48824 is a medium-severity denial of service vulnerability in axllent mailpit, published on 20 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-48824 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/axllent/mailpit (Go): affected all versions; fixed in 1.30.1\n- github.com/axllent/mailpit (Go): affected all versions; fixed in 1.30.1\n- github.com/axllent/mailpit (Go): affected all versions; fixed in 1.30.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-48824/ (Markdown: https://insights.sbomify.com/CVE-2026-48824/index.md)","id":"CVE-2026-48824","markdown":"https://insights.sbomify.com/CVE-2026-48824/index.md","name":"CVE-2026-48824","record":{"aliases":["GHSA-28pq-6qxg-wg5r","GO-2026-5868"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Email testing tool","requires_auth":"none","summary":"Unauthenticated attackers can cause memory exhaustion and denial of service by sending large JSON payloads to specific Mailpit API endpoints.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"mailpit","vendor":"axllent"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Mailpit is an email testing tool and API for developers. Prior to version 1.30.1, the fix for GHSA-fpxj-m5q8-fphw (CVE-2026-45710, \"Mailpit: Set a default 50MB p/m limit to prevent DoS via unlimited SMTP DATA and /api/v1/send body sizes\") wrapped only `POST /api/v1/send` with `http.MaxBytesReader`. The four other Mailpit JSON-body API endpoints  `PUT /api/v1/messages` (SetReadStatus), `DELETE /api/v1/messages` (DeleteMessages), `PUT /api/v1/tags` (SetMessageTags), and `POST /api/v1/message/{id}/release` (ReleaseMessage)  still call `json.NewDecoder(r.Body)` directly with no body-size cap and remain reachable unauthenticated in the default `docker run axllent/mailpit:latest` deploy. An unauthenticated remote attacker can post a multi-million-element `IDs` slice and drive RSS from ~25 MiB baseline to ~450 MiB per 16 MB request body. Repeating across multiple connections accumulates the same per-request amplification per process. Version 1.30.1 contains a patch.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Mailpit: Sibling-endpoint memory-exhaustion DoS via unbounded JSON body on /api/v1/messages, /api/v1/tags, and /api/v1/message/{id}/release (incomplete fix of GHSA-fpxj-m5q8-fphw)","id":"CVE-2026-48824","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"HomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header Switching","id":"CVE-2026-48826"},"packages":[{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/axllent/mailpit","purl":null,"source":"GHSA-28pq-6qxg-wg5r"},{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/axllent/mailpit","purl":"pkg:golang/github.com/axllent/mailpit","source":"GHSA-28pq-6qxg-wg5r"},{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/axllent/mailpit","purl":"pkg:golang/github.com/axllent/mailpit","source":"GO-2026-5868"}],"prev":{"headline":"Shaarli has Stored Cross-Site Scripting (XSS) via Tags Search","id":"CVE-2026-48823"},"products":["mailpit"],"published":"2026-07-20","related":[{"cvss_score":7.5,"headline":"Mailpit: Unauthenticated remote memory-exhaustion DoS via unlimited SMTP DATA and /api/v1/send body sizes","id":"CVE-2026-45713","kev_date_added":null,"published":"2026-07-20"},{"cvss_score":6.5,"headline":"Mailpit is vulnerable to Cross-Site WebSocket Hijacking (CSWSH) allowing unauthenticated access to emails","id":"CVE-2026-22689","kev_date_added":null,"published":"2026-01-10"},{"cvss_score":5.9,"headline":"Mailpit: Path traversal \u0026 arbitrary file write in mailpit dump --http via attacker-controlled message IDs","id":"CVE-2026-45711","kev_date_added":null,"published":"2026-07-20"},{"cvss_score":5.9,"headline":"Mailpit: Concurrent map read \u0026 write in proxy CSS rewriter - remote unauth crash (fatal error: concurrent map read and map write)","id":"CVE-2026-45712","kev_date_added":null,"published":"2026-07-20"},{"cvss_score":5.8,"headline":"Mailpit has an incomplete fix for GHSA-6jxm: HTML check still permits SSRF to private/loopback/IMDS via missing IP-filter dialer","id":"CVE-2026-45709","kev_date_added":null,"published":"2026-07-20"},{"cvss_score":5.8,"headline":"Mailpit is Vulnerable to Server-Side Request Forgery (SSRF) via Link Check API","id":"CVE-2026-27808","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":5.8,"headline":"Mailpit Vulnerable to Server-Side Request Forgery (SSRF) via HTML Check API","id":"CVE-2026-23845","kev_date_added":null,"published":"2026-01-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-20","vendors":["axllent"]},"summary":"Unauthenticated attackers can cause memory exhaustion and denial of service by sending large JSON payloads to specific Mailpit API endpoints.","url":"https://insights.sbomify.com/CVE-2026-48824/"}