{"items":[{"id":"NVI-00009035","kind":"vulnerability","title":"Echo: Decompress permits unbounded gzip expansion in v4","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h7wr-284f-5qvc","CVE-2026-118261"],"plain_summary":"GitHub lists this reviewed advisory for github.com/labstack/echo/v4. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-4f4cd3623378f04d0f6c750f71522805"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.372%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31122. Missing scores are unknown.","source_id":"sr-4f4cd3623378f04d0f6c750f71522805"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-839b49cc78e13f2a4ca76c9789a9a854","url":"https://github.com/advisories/GHSA-h7wr-284f-5qvc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h7wr-284f-5qvc","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:36.327Z"},{"id":"sr-4f4cd3623378f04d0f6c750f71522805","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-118261","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.375Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-839b49cc78e13f2a4ca76c9789a9a854"],"technology":"github.com/labstack/echo/v4","known_exclusions":[],"conditions_summary":"## Impact\n\nEcho v4's opt-in Decompress middleware exposed a gzip-decoded request stream without limiting its expanded size. A small compressed request could therefore produce a very large decoded body. Handlers that read or bind that body could consume excessive memory or CPU, and repeated or concurrent requests could cause denial of service.\n\nThe middleware is not enabled by default. A limit on the compressed request size alone does not bound the decompressed size. Applications that already apply an effective body limit after decompression have reduced exposure.\n\n## Affected versions and patch\n\nEcho v4 versions through v4.16.0 are affected. Upgrade to v4.16.1.\n\nThe patch adds `DecompressConfig.MaxDecompressedSize`, defaulting to 100 MiB when zero. A value of `-1` explicitly disables the limit. Reading beyond the cap returns `ErrStatusRequestEntityTooLarge` (HTTP 413), including through JSON and XML binding. Bodies exactly at the configured limit remain valid. Streaming enforcement requires callers to handle body-read errors.\n\nFix commit.\n\n## ","public_affected_ranges":[">= 4.0.0, < 4.16.1"]}],"null_published_at":"2026-10-31T23:18:17.286Z","source_updated_at":"2026-10-28T18:58:51.000Z","source_disclosed_at":"2026-10-23T20:49:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:36.327Z"},{"id":"NVI-00009035","kind":"vulnerability","title":"Echo: Decompress permits unbounded gzip expansion in v4","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h7wr-284f-5qvc","CVE-2026-118261"],"plain_summary":"GitHub lists this reviewed advisory for github.com/labstack/echo/v4. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-839b49cc78e13f2a4ca76c9789a9a854"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-839b49cc78e13f2a4ca76c9789a9a854","url":"https://github.com/advisories/GHSA-h7wr-284f-5qvc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h7wr-284f-5qvc","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:36.327Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-839b49cc78e13f2a4ca76c9789a9a854"],"technology":"github.com/labstack/echo/v4","known_exclusions":[],"conditions_summary":"## Impact\n\nEcho v4's opt-in Decompress middleware exposed a gzip-decoded request stream without limiting its expanded size. A small compressed request could therefore produce a very large decoded body. Handlers that read or bind that body could consume excessive memory or CPU, and repeated or concurrent requests could cause denial of service.\n\nThe middleware is not enabled by default. A limit on the compressed request size alone does not bound the decompressed size. Applications that already apply an effective body limit after decompression have reduced exposure.\n\n## Affected versions and patch\n\nEcho v4 versions through v4.16.0 are affected. Upgrade to v4.16.1.\n\nThe patch adds `DecompressConfig.MaxDecompressedSize`, defaulting to 100 MiB when zero. A value of `-1` explicitly disables the limit. Reading beyond the cap returns `ErrStatusRequestEntityTooLarge` (HTTP 413), including through JSON and XML binding. Bodies exactly at the configured limit remain valid. Streaming enforcement requires callers to handle body-read errors.\n\nFix commit.\n\n## ","public_affected_ranges":[">= 4.0.0, < 4.16.1"]}],"null_published_at":"2026-10-31T22:13:31.268Z","source_updated_at":"2026-10-28T18:58:51.000Z","source_disclosed_at":"2026-10-23T20:49:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:56:36.327Z"}],"next_cursor":null,"snapshot_revision":"42594"}